highcharts/modules/accessibility.js

JavaScript charting framework

/**
 * Highcharts JS v11.3.0 (2024-01-10)
 *
 * Accessibility module
 *
 * (c) 2010-2024 Highsoft AS
 * Author: Oystein Moseng
 *
 * License: www.highcharts.com/license
 */!function(t){"object"==typeof module&&module.exports?(t.default=t,module.exports=t):"function"==typeof define&&define.amd?define("highcharts/modules/accessibility",["highcharts"],function(e){return t(e),t.Highcharts=e,t}):t("undefined"!=typeof Highcharts?Highcharts:void 0)}(function(t){"use strict";var e=t?t._modules:{};function i(t,e,i,s){t.hasOwnProperty(e)||(t[e]=s.apply(null,i),"function"==typeof CustomEvent&&window.dispatchEvent(new CustomEvent("HighchartsModuleLoaded",{detail:{path:e,module:t[e]}})))}i(e,"Accessibility/Utils/HTMLUtilities.js",[e["Core/Globals.js"],e["Core/Utilities.js"]],function(t,e){let{doc:i,win:s}=t,{css:n}=e,o=s.EventTarget&&new s.EventTarget||"none";function r(t){if("function"==typeof s.MouseEvent)return new s.MouseEvent(t.type,t);if(i.createEvent){let e=i.createEvent("MouseEvent");if(e.initMouseEvent)return 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s=e.screenReaderSection.afterChartFormatter;return s?s(i):t.defaultAfterChartFormatter()},insertIntoDOM:function(t,e){e.renderTo.insertBefore(t,e.container.nextSibling)},afterInserted:function(){t.chart.accessibility&&e.keyboardNavigation.enabled&&t.chart.accessibility.keyboardNavigation.updateExitAnchor()}}}}onChartRender(){let t=this;this.linkedDescriptionElement=this.getLinkedDescriptionElement(),this.setLinkedDescriptionAttrs(),Object.keys(this.screenReaderSections).forEach(function(e){t.updateScreenReaderSection(e)})}getLinkedDescriptionElement(){let t=this.chart.options,e=t.accessibility.linkedDescription;if(!e)return;if("string"!=typeof e)return e;let i=m(e,this.chart),s=b.querySelectorAll(i);if(1===s.length)return s[0]}setLinkedDescriptionAttrs(){let t=this.linkedDescriptionElement;t&&(t.setAttribute("aria-hidden","true"),f(t,"highcharts-linked-description"))}updateScreenReaderSection(t){let 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s=this.getAxesDescription(),n=e.sonify&&e.options.sonification&&e.options.sonification.enabled,o="highcharts-a11y-sonify-data-btn-"+e.index,r="hc-linkto-highcharts-data-table-"+e.index,a=c(e),l=e.langFormat("accessibility.screenReaderSection.annotations.heading",{chart:e}),h={headingTagName:y(e.renderTo),chartTitle:p(e),typeDescription:this.getTypeDescriptionText(),chartSubtitle:this.getSubtitleText(),chartLongdesc:this.getLongdescText(),xAxisDescription:s.xAxis,yAxisDescription:s.yAxis,playAsSoundButton:n?this.getSonifyButtonText(o):"",viewTableButton:e.getCSV?this.getDataTableButtonText(r):"",annotationsTitle:a?l:"",annotationsList:a},d=t.i18nFormat(i,h,e);return this.dataTableButtonId=r,this.sonifyButtonId=o,E(d)}defaultAfterChartFormatter(){let e=this.chart,i=e.options.accessibility.screenReaderSection.afterChartFormat;if(!i)return"";let s={endOfChartMarker:this.getEndOfChartMarkerText()},n=t.i18nFormat(i,s,e);return E(n)}getLinkedDescription(){let t=this.linkedDescriptionElement,e=t&&t.innerHTML||"";return v(e,this.chart.renderer.forExport)}getLongdescText(){let t=this.chart.options,e=t.caption,i=e&&e.text,s=this.getLinkedDescription();return t.accessibility.description||s||i||""}getTypeDescriptionText(){let t=this.chart;return t.types?t.options.accessibility.typeDescription||function(t,e){let i=e[0],s=t.series&&t.series[0]||{},n=t.mapView&&t.mapView.geoMap&&t.mapView.geoMap.title,o={numSeries:t.series.length,numPoints:s.points&&s.points.length,chart:t,mapTitle:n};return i?"map"===i||"tiledwebmap"===i?o.mapTitle?t.langFormat("accessibility.chartTypes.mapTypeDescription",o):t.langFormat("accessibility.chartTypes.unknownMap",o):t.types.length>1?t.langFormat("accessibility.chartTypes.combinationChart",o):function(t,e,i){let s=e[0],n=t.langFormat("accessibility.seriesTypeDescriptions."+s,i),o=t.series&&t.series.length<2?"Single":"Multiple";return(t.langFormat("accessibility.chartTypes."+s+o,i)||t.langFormat("accessibility.chartTypes.default"+o,i))+(n?" 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t=this.chart,e=t.exportContextMenu;e&&(this.addAccessibleContextMenuAttribs(),d(t,e)),this.setExportButtonExpandedState("true")}setExportButtonExpandedState(t){this.exportButtonProxy&&this.exportButtonProxy.innerElement.setAttribute("aria-expanded",t)}onChartRender(){let t=this.chart,e=t.focusElement,i=t.accessibility;this.proxyProvider.clearGroup("chartMenu"),this.proxyMenuButton(),this.exportButtonProxy&&e&&e===t.exportingGroup&&(e.focusBorder?t.setFocusToElement(e,this.exportButtonProxy.innerElement):i&&i.keyboardNavigation.tabindexContainer.focus())}proxyMenuButton(){let t=this.chart,e=this.proxyProvider,i=p(t);(function(t){let e=t.options.exporting,i=p(t);return!!(e&&!1!==e.enabled&&e.accessibility&&e.accessibility.enabled&&i&&i.element)})(t)&&i&&(this.exportButtonProxy=e.addProxyElement("chartMenu",{click:i},"button",{"aria-label":t.langFormat("accessibility.exporting.menuButtonLabel",{chart:t,chartTitle:c(t)}),"aria-expanded":!1,title:t.options.lang.contextButtonTitle||null}))}createProxyGroup(){let t=this.chart;t&&this.proxyProvider&&this.proxyProvider.addGroup("chartMenu")}addAccessibleContextMenuAttribs(){let t=this.chart,e=t.exportDivElements;if(e&&e.length){e.forEach(t=>{t&&("LI"!==t.tagName||t.children&&t.children.length?t.setAttribute("aria-hidden","true"):t.setAttribute("tabindex",-1))});let i=e[0]&&e[0].parentNode;i&&l(i,{"aria-hidden":void 0,"aria-label":t.langFormat("accessibility.exporting.chartMenuLabel",{chart:t}),role:"list"})}}getKeyboardNavigation(){let t=this.keyCodes,e=this.chart,i=this;return new n(e,{keyCodeMap:[[[t.left,t.up],function(){return 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e=this.chart,i=e.exportDivElements[e.highlightedExportItemIx],s=p(e).element;return e.openMenu?this.fakeClickEvent(i):(this.fakeClickEvent(s),e.highlightExportItem(0)),t.response.success}}return function(e){function i(){let t=p(this);if(t){let e=t.element;e.onclick&&e.onclick(u("click"))}}function s(){let t=this.exportDivElements;t&&this.exportContextMenu&&this.openMenu&&(t.forEach(t=>{t&&"highcharts-menu-item"===t.className&&t.onmouseout&&t.onmouseout(u("mouseout"))}),this.highlightedExportItemIx=0,this.exportContextMenu.hideMenu(),this.container.focus())}function n(t){let e=this.exportDivElements&&this.exportDivElements[t],i=this.exportDivElements&&this.exportDivElements[this.highlightedExportItemIx];if(e&&"LI"===e.tagName&&!(e.children&&e.children.length)){let s=!!(this.renderTo.getElementsByTagName("g")[0]||{}).focus;return 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