7168 lines
317 KiB
JavaScript
7168 lines
317 KiB
JavaScript
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/**
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* @license Highcharts JS v8.1.0 (2020-05-05)
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*
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* Accessibility module
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*
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* (c) 2010-2019 Highsoft AS
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* Author: Oystein Moseng
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*
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* License: www.highcharts.com/license
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*/
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'use strict';
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(function (factory) {
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if (typeof module === 'object' && module.exports) {
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factory['default'] = factory;
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module.exports = factory;
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} else if (typeof define === 'function' && define.amd) {
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define('highcharts/modules/accessibility', ['highcharts'], function (Highcharts) {
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factory(Highcharts);
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factory.Highcharts = Highcharts;
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return factory;
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});
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} else {
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factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
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}
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}(function (Highcharts) {
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var _modules = Highcharts ? Highcharts._modules : {};
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function _registerModule(obj, path, args, fn) {
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if (!obj.hasOwnProperty(path)) {
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obj[path] = fn.apply(null, args);
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}
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}
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_registerModule(_modules, 'modules/accessibility/utils/htmlUtilities.js', [_modules['parts/Utilities.js'], _modules['parts/Globals.js']], function (U, H) {
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/* *
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*
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* (c) 2009-2020 Øystein Moseng
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*
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* Utility functions for accessibility module.
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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var merge = U.merge;
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var win = H.win, doc = win.document;
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/* eslint-disable valid-jsdoc */
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/**
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* @private
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* @param {Highcharts.HTMLDOMElement} el
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* @param {string} className
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* @return {void}
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*/
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function addClass(el, className) {
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if (el.classList) {
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el.classList.add(className);
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}
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else if (el.className.indexOf(className) < 0) {
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// Note: Dumb check for class name exists, should be fine for practical
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// use cases, but will return false positives if the element has a class
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// that contains the className.
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el.className += className;
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}
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}
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/**
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* @private
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* @param {string} str
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* @return {string}
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*/
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function escapeStringForHTML(str) {
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return str
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/"/g, '"')
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.replace(/'/g, ''')
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.replace(/\//g, '/');
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}
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/**
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* Get an element by ID
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* @param {string} id
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* @private
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* @return {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement|null}
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*/
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function getElement(id) {
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return doc.getElementById(id);
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}
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/**
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* Get a fake mouse event of a given type
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* @param {string} type
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* @private
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* @return {global.MouseEvent}
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*/
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function getFakeMouseEvent(type) {
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if (typeof win.MouseEvent === 'function') {
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return new win.MouseEvent(type);
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}
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// No MouseEvent support, try using initMouseEvent
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if (doc.createEvent) {
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var evt = doc.createEvent('MouseEvent');
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if (evt.initMouseEvent) {
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evt.initMouseEvent(type, true, // Bubble
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true, // Cancel
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win, // View
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type === 'click' ? 1 : 0, // Detail
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// Coords
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0, 0, 0, 0,
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// Pressed keys
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false, false, false, false, 0, // button
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null // related target
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);
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return evt;
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}
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}
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return { type: type };
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}
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/**
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* Remove an element from the DOM.
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* @private
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* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} [element]
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* @return {void}
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*/
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function removeElement(element) {
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if (element && element.parentNode) {
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element.parentNode.removeChild(element);
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}
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}
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/**
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* Utility function. Reverses child nodes of a DOM element.
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* @private
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* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} node
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* @return {void}
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*/
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function reverseChildNodes(node) {
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var i = node.childNodes.length;
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while (i--) {
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node.appendChild(node.childNodes[i]);
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}
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}
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/**
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* Set attributes on element. Set to null to remove attribute.
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* @private
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* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} el
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* @param {Highcharts.HTMLAttributes|Highcharts.SVGAttributes} attrs
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* @return {void}
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*/
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function setElAttrs(el, attrs) {
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Object.keys(attrs).forEach(function (attr) {
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var val = attrs[attr];
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if (val === null) {
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el.removeAttribute(attr);
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}
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else {
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var cleanedVal = escapeStringForHTML('' + val);
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el.setAttribute(attr, cleanedVal);
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}
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});
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}
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/**
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* Used for aria-label attributes, painting on a canvas will fail if the
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* text contains tags.
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* @private
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* @param {string} str
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* @return {string}
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*/
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function stripHTMLTagsFromString(str) {
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return typeof str === 'string' ?
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str.replace(/<\/?[^>]+(>|$)/g, '') : str;
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}
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/**
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* Utility function for hiding an element visually, but still keeping it
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* available to screen reader users.
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* @private
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* @param {Highcharts.HTMLDOMElement} element
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* @return {void}
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*/
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function visuallyHideElement(element) {
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var hiddenStyle = {
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position: 'absolute',
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width: '1px',
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height: '1px',
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overflow: 'hidden',
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whiteSpace: 'nowrap',
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clip: 'rect(1px, 1px, 1px, 1px)',
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marginTop: '-3px',
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'-ms-filter': 'progid:DXImageTransform.Microsoft.Alpha(Opacity=1)',
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filter: 'alpha(opacity=1)',
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opacity: '0.01'
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};
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merge(true, element.style, hiddenStyle);
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}
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var HTMLUtilities = {
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addClass: addClass,
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escapeStringForHTML: escapeStringForHTML,
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getElement: getElement,
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getFakeMouseEvent: getFakeMouseEvent,
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removeElement: removeElement,
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reverseChildNodes: reverseChildNodes,
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setElAttrs: setElAttrs,
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stripHTMLTagsFromString: stripHTMLTagsFromString,
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visuallyHideElement: visuallyHideElement
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};
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return HTMLUtilities;
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});
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_registerModule(_modules, 'modules/accessibility/utils/chartUtilities.js', [_modules['modules/accessibility/utils/htmlUtilities.js'], _modules['parts/Utilities.js']], function (HTMLUtilities, U) {
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/* *
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*
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* (c) 2009-2020 Øystein Moseng
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*
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* Utils for dealing with charts.
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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var stripHTMLTags = HTMLUtilities.stripHTMLTagsFromString;
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var defined = U.defined, find = U.find;
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/* eslint-disable valid-jsdoc */
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/**
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* @return {string}
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*/
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function getChartTitle(chart) {
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return stripHTMLTags(chart.options.title.text ||
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chart.langFormat('accessibility.defaultChartTitle', { chart: chart }));
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}
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/**
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* @param {Highcharts.Axis} axis
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* @return {string}
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*/
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function getAxisDescription(axis) {
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return stripHTMLTags(axis && (axis.userOptions && axis.userOptions.accessibility &&
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axis.userOptions.accessibility.description ||
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axis.axisTitle && axis.axisTitle.textStr ||
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axis.options.id ||
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axis.categories && 'categories' ||
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axis.dateTime && 'Time' ||
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'values'));
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}
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/**
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* Get the DOM element for the first point in the series.
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* @private
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* @param {Highcharts.Series} series
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* The series to get element for.
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* @return {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement|undefined}
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* The DOM element for the point.
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*/
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function getSeriesFirstPointElement(series) {
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if (series.points &&
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series.points.length &&
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series.points[0].graphic) {
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return series.points[0].graphic.element;
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}
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}
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/**
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* Get the DOM element for the series that we put accessibility info on.
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* @private
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* @param {Highcharts.Series} series
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* The series to get element for.
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* @return {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement|undefined}
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* The DOM element for the series
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*/
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function getSeriesA11yElement(series) {
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var firstPointEl = getSeriesFirstPointElement(series);
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return (firstPointEl &&
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firstPointEl.parentNode || series.graph &&
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series.graph.element || series.group &&
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series.group.element); // Could be tracker series depending on series type
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}
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/**
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* Remove aria-hidden from element. Also unhides parents of the element, and
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* hides siblings that are not explicitly unhidden.
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* @private
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* @param {Highcharts.Chart} chart
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* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} element
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* @return {void}
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*/
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function unhideChartElementFromAT(chart, element) {
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element.setAttribute('aria-hidden', false);
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if (element === chart.renderTo || !element.parentNode) {
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return;
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}
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// Hide siblings unless their hidden state is already explicitly set
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Array.prototype.forEach.call(element.parentNode.childNodes, function (node) {
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if (!node.hasAttribute('aria-hidden')) {
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node.setAttribute('aria-hidden', true);
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}
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});
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// Repeat for parent
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unhideChartElementFromAT(chart, element.parentNode);
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}
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/**
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* Hide series from screen readers.
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* @private
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* @param {Highcharts.Series} series
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* The series to hide
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* @return {void}
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*/
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function hideSeriesFromAT(series) {
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var seriesEl = getSeriesA11yElement(series);
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if (seriesEl) {
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seriesEl.setAttribute('aria-hidden', true);
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}
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}
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/**
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* Get series objects by series name.
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* @private
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* @param {Highcharts.Chart} chart
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* @param {string} name
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* @return {Array<Highcharts.Series>}
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*/
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function getSeriesFromName(chart, name) {
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if (!name) {
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return chart.series;
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}
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return (chart.series || []).filter(function (s) {
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return s.name === name;
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});
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}
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/**
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* Get point in a series from x/y values.
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* @private
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* @param {Array<Highcharts.Series>} series
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* @param {number} x
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* @param {number} y
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* @return {Highcharts.Point|undefined}
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*/
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function getPointFromXY(series, x, y) {
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var i = series.length, res;
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while (i--) {
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res = find(series[i].points || [], function (p) {
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return p.x === x && p.y === y;
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});
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if (res) {
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return res;
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}
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||
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}
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||
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}
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||
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/**
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||
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* Get relative position of point on an x/y axis from 0 to 1.
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||
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* @private
|
||
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* @param {Highcharts.Axis} axis
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* @param {Highcharts.Point} point
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* @return {number}
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||
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*/
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||
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function getRelativePointAxisPosition(axis, point) {
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||
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if (!defined(axis.dataMin) || !defined(axis.dataMax)) {
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return 0;
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}
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var axisStart = axis.toPixels(axis.dataMin);
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var axisEnd = axis.toPixels(axis.dataMax);
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// We have to use pixel position because of axis breaks, log axis etc.
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||
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var positionProp = axis.coll === 'xAxis' ? 'x' : 'y';
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var pointPos = axis.toPixels(point[positionProp] || 0);
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return (pointPos - axisStart) / (axisEnd - axisStart);
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}
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/**
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||
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* Get relative position of point on an x/y axis from 0 to 1.
|
||
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* @private
|
||
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* @param {Highcharts.Point} point
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||
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*/
|
||
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function scrollToPoint(point) {
|
||
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var xAxis = point.series.xAxis;
|
||
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var yAxis = point.series.yAxis;
|
||
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var axis = (xAxis === null || xAxis === void 0 ? void 0 : xAxis.scrollbar) ? xAxis : yAxis;
|
||
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var scrollbar = axis === null || axis === void 0 ? void 0 : axis.scrollbar;
|
||
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if (scrollbar && defined(scrollbar.to) && defined(scrollbar.from)) {
|
||
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var range = scrollbar.to - scrollbar.from;
|
||
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var pos = getRelativePointAxisPosition(axis, point);
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||
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scrollbar.updatePosition(pos - range / 2, pos + range / 2);
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||
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Highcharts.fireEvent(scrollbar, 'changed', {
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||
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from: scrollbar.from,
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||
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to: scrollbar.to,
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||
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trigger: 'scrollbar',
|
||
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DOMEvent: null
|
||
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});
|
||
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}
|
||
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}
|
||
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var ChartUtilities = {
|
||
|
|
getChartTitle: getChartTitle,
|
||
|
|
getAxisDescription: getAxisDescription,
|
||
|
|
getPointFromXY: getPointFromXY,
|
||
|
|
getSeriesFirstPointElement: getSeriesFirstPointElement,
|
||
|
|
getSeriesFromName: getSeriesFromName,
|
||
|
|
getSeriesA11yElement: getSeriesA11yElement,
|
||
|
|
unhideChartElementFromAT: unhideChartElementFromAT,
|
||
|
|
hideSeriesFromAT: hideSeriesFromAT,
|
||
|
|
scrollToPoint: scrollToPoint
|
||
|
|
};
|
||
|
|
|
||
|
|
return ChartUtilities;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/KeyboardNavigationHandler.js', [_modules['parts/Utilities.js']], function (U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Keyboard navigation handler base class definition
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var find = U.find;
|
||
|
|
/**
|
||
|
|
* Options for the keyboard navigation handler.
|
||
|
|
*
|
||
|
|
* @interface Highcharts.KeyboardNavigationHandlerOptionsObject
|
||
|
|
*/ /**
|
||
|
|
* An array containing pairs of an array of keycodes, mapped to a handler
|
||
|
|
* function. When the keycode is received, the handler is called with the
|
||
|
|
* keycode as parameter.
|
||
|
|
* @name Highcharts.KeyboardNavigationHandlerOptionsObject#keyCodeMap
|
||
|
|
* @type {Array<Array<Array<number>, Function>>}
|
||
|
|
*/ /**
|
||
|
|
* Function to run on initialization of module.
|
||
|
|
* @name Highcharts.KeyboardNavigationHandlerOptionsObject#init
|
||
|
|
* @type {Function}
|
||
|
|
*/ /**
|
||
|
|
* Function to run before moving to next/prev module. Receives moving direction
|
||
|
|
* as parameter: +1 for next, -1 for previous.
|
||
|
|
* @name Highcharts.KeyboardNavigationHandlerOptionsObject#terminate
|
||
|
|
* @type {Function|undefined}
|
||
|
|
*/ /**
|
||
|
|
* Function to run to validate module. Should return false if module should not
|
||
|
|
* run, true otherwise. Receives chart as parameter.
|
||
|
|
* @name Highcharts.KeyboardNavigationHandlerOptionsObject#validate
|
||
|
|
* @type {Function|undefined}
|
||
|
|
*/
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* Define a keyboard navigation handler for use with a
|
||
|
|
* Highcharts.AccessibilityComponent instance. This functions as an abstraction
|
||
|
|
* layer for keyboard navigation, and defines a map of keyCodes to handler
|
||
|
|
* functions.
|
||
|
|
*
|
||
|
|
* @requires module:modules/accessibility
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/custom-component
|
||
|
|
* Custom accessibility component
|
||
|
|
*
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.KeyboardNavigationHandler
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* The chart this module should act on.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandlerOptionsObject} options
|
||
|
|
* Options for the keyboard navigation handler.
|
||
|
|
*/
|
||
|
|
function KeyboardNavigationHandler(chart, options) {
|
||
|
|
this.chart = chart;
|
||
|
|
this.keyCodeMap = options.keyCodeMap || [];
|
||
|
|
this.validate = options.validate;
|
||
|
|
this.init = options.init;
|
||
|
|
this.terminate = options.terminate;
|
||
|
|
// Response enum
|
||
|
|
this.response = {
|
||
|
|
success: 1,
|
||
|
|
prev: 2,
|
||
|
|
next: 3,
|
||
|
|
noHandler: 4,
|
||
|
|
fail: 5 // Handler failed
|
||
|
|
};
|
||
|
|
}
|
||
|
|
KeyboardNavigationHandler.prototype = {
|
||
|
|
/**
|
||
|
|
* Find handler function(s) for key code in the keyCodeMap and run it.
|
||
|
|
*
|
||
|
|
* @function KeyboardNavigationHandler#run
|
||
|
|
* @param {global.KeyboardEvent} e
|
||
|
|
* @return {number} Returns a response code indicating whether the run was
|
||
|
|
* a success/fail/unhandled, or if we should move to next/prev module.
|
||
|
|
*/
|
||
|
|
run: function (e) {
|
||
|
|
var keyCode = e.which || e.keyCode, response = this.response.noHandler, handlerCodeSet = find(this.keyCodeMap, function (codeSet) {
|
||
|
|
return codeSet[0].indexOf(keyCode) > -1;
|
||
|
|
});
|
||
|
|
if (handlerCodeSet) {
|
||
|
|
response = handlerCodeSet[1].call(this, keyCode, e);
|
||
|
|
}
|
||
|
|
else if (keyCode === 9) {
|
||
|
|
// Default tab handler, move to next/prev module
|
||
|
|
response = this.response[e.shiftKey ? 'prev' : 'next'];
|
||
|
|
}
|
||
|
|
return response;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return KeyboardNavigationHandler;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/utils/EventProvider.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Class that can keep track of events added, and clean them up on destroy.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var addEvent = U.addEvent, extend = U.extend;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
*/
|
||
|
|
var EventProvider = function () {
|
||
|
|
this.eventRemovers = [];
|
||
|
|
};
|
||
|
|
extend(EventProvider.prototype, {
|
||
|
|
/**
|
||
|
|
* Add an event to an element and keep track of it for later removal.
|
||
|
|
* Same args as Highcharts.addEvent.
|
||
|
|
* @private
|
||
|
|
* @return {Function}
|
||
|
|
*/
|
||
|
|
addEvent: function () {
|
||
|
|
var remover = addEvent.apply(H, arguments);
|
||
|
|
this.eventRemovers.push(remover);
|
||
|
|
return remover;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove all added events.
|
||
|
|
* @private
|
||
|
|
* @return {void}
|
||
|
|
*/
|
||
|
|
removeAddedEvents: function () {
|
||
|
|
this.eventRemovers.forEach(function (remover) {
|
||
|
|
remover();
|
||
|
|
});
|
||
|
|
this.eventRemovers = [];
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return EventProvider;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/utils/DOMElementProvider.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, U, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Class that can keep track of elements added to DOM and clean them up on
|
||
|
|
* destroy.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var doc = H.win.document;
|
||
|
|
var extend = U.extend;
|
||
|
|
var removeElement = HTMLUtilities.removeElement;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
*/
|
||
|
|
var DOMElementProvider = function () {
|
||
|
|
this.elements = [];
|
||
|
|
};
|
||
|
|
extend(DOMElementProvider.prototype, {
|
||
|
|
/**
|
||
|
|
* Create an element and keep track of it for later removal.
|
||
|
|
* Same args as document.createElement
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
createElement: function () {
|
||
|
|
var el = doc.createElement.apply(doc, arguments);
|
||
|
|
this.elements.push(el);
|
||
|
|
return el;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Destroy all created elements, removing them from the DOM.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
destroyCreatedElements: function () {
|
||
|
|
this.elements.forEach(function (element) {
|
||
|
|
removeElement(element);
|
||
|
|
});
|
||
|
|
this.elements = [];
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return DOMElementProvider;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/AccessibilityComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/utils/EventProvider.js'], _modules['modules/accessibility/utils/DOMElementProvider.js']], function (H, U, HTMLUtilities, ChartUtilities, EventProvider, DOMElementProvider) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component class definition
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var win = H.win, doc = win.document;
|
||
|
|
var extend = U.extend, fireEvent = U.fireEvent, merge = U.merge;
|
||
|
|
var removeElement = HTMLUtilities.removeElement, getFakeMouseEvent = HTMLUtilities.getFakeMouseEvent;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
/** @lends Highcharts.AccessibilityComponent */
|
||
|
|
var functionsToOverrideByDerivedClasses = {
|
||
|
|
/**
|
||
|
|
* Called on component initialization.
|
||
|
|
*/
|
||
|
|
init: function () { },
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for this component.
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () { },
|
||
|
|
/**
|
||
|
|
* Called on updates to the chart, including options changes.
|
||
|
|
* Note that this is also called on first render of chart.
|
||
|
|
*/
|
||
|
|
onChartUpdate: function () { },
|
||
|
|
/**
|
||
|
|
* Called on every chart render.
|
||
|
|
*/
|
||
|
|
onChartRender: function () { },
|
||
|
|
/**
|
||
|
|
* Called when accessibility is disabled or chart is destroyed.
|
||
|
|
*/
|
||
|
|
destroy: function () { }
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* The AccessibilityComponent base class, representing a part of the chart that
|
||
|
|
* has accessibility logic connected to it. This class can be inherited from to
|
||
|
|
* create a custom accessibility component for a chart.
|
||
|
|
*
|
||
|
|
* Components should take care to destroy added elements and unregister event
|
||
|
|
* handlers on destroy. This is handled automatically if using this.addEvent and
|
||
|
|
* this.createElement.
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/custom-component
|
||
|
|
* Custom accessibility component
|
||
|
|
*
|
||
|
|
* @requires module:modules/accessibility
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.AccessibilityComponent
|
||
|
|
*/
|
||
|
|
function AccessibilityComponent() { }
|
||
|
|
/**
|
||
|
|
* @lends Highcharts.AccessibilityComponent
|
||
|
|
*/
|
||
|
|
AccessibilityComponent.prototype = {
|
||
|
|
/**
|
||
|
|
* Initialize the class
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* Chart object
|
||
|
|
*/
|
||
|
|
initBase: function (chart) {
|
||
|
|
this.chart = chart;
|
||
|
|
this.eventProvider = new EventProvider();
|
||
|
|
this.domElementProvider = new DOMElementProvider();
|
||
|
|
// Key code enum for common keys
|
||
|
|
this.keyCodes = {
|
||
|
|
left: 37,
|
||
|
|
right: 39,
|
||
|
|
up: 38,
|
||
|
|
down: 40,
|
||
|
|
enter: 13,
|
||
|
|
space: 32,
|
||
|
|
esc: 27,
|
||
|
|
tab: 9
|
||
|
|
};
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Add an event to an element and keep track of it for later removal.
|
||
|
|
* See EventProvider for details.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addEvent: function () {
|
||
|
|
return this.eventProvider.addEvent
|
||
|
|
.apply(this.eventProvider, arguments);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Create an element and keep track of it for later removal.
|
||
|
|
* See DOMElementProvider for details.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
createElement: function () {
|
||
|
|
return this.domElementProvider.createElement.apply(this.domElementProvider, arguments);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Fire an event on an element that is either wrapped by Highcharts,
|
||
|
|
* or a DOM element
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLElement|Highcharts.HTMLDOMElement|
|
||
|
|
* Highcharts.SVGDOMElement|Highcharts.SVGElement} el
|
||
|
|
* @param {Event} eventObject
|
||
|
|
*/
|
||
|
|
fireEventOnWrappedOrUnwrappedElement: function (el, eventObject) {
|
||
|
|
var type = eventObject.type;
|
||
|
|
if (doc.createEvent && (el.dispatchEvent || el.fireEvent)) {
|
||
|
|
if (el.dispatchEvent) {
|
||
|
|
el.dispatchEvent(eventObject);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
el.fireEvent(type, eventObject);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
fireEvent(el, type, eventObject);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Utility function to attempt to fake a click event on an element.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} element
|
||
|
|
*/
|
||
|
|
fakeClickEvent: function (element) {
|
||
|
|
if (element) {
|
||
|
|
var fakeEventObject = getFakeMouseEvent('click');
|
||
|
|
this.fireEventOnWrappedOrUnwrappedElement(element, fakeEventObject);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Add a new proxy group to the proxy container. Creates the proxy container
|
||
|
|
* if it does not exist.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLAttributes} [attrs]
|
||
|
|
* The attributes to set on the new group div.
|
||
|
|
* @return {Highcharts.HTMLDOMElement}
|
||
|
|
* The new proxy group element.
|
||
|
|
*/
|
||
|
|
addProxyGroup: function (attrs) {
|
||
|
|
this.createOrUpdateProxyContainer();
|
||
|
|
var groupDiv = this.createElement('div');
|
||
|
|
Object.keys(attrs || {}).forEach(function (prop) {
|
||
|
|
if (attrs[prop] !== null) {
|
||
|
|
groupDiv.setAttribute(prop, attrs[prop]);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
this.chart.a11yProxyContainer.appendChild(groupDiv);
|
||
|
|
return groupDiv;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Creates and updates DOM position of proxy container
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
createOrUpdateProxyContainer: function () {
|
||
|
|
var chart = this.chart, rendererSVGEl = chart.renderer.box;
|
||
|
|
chart.a11yProxyContainer = chart.a11yProxyContainer ||
|
||
|
|
this.createProxyContainerElement();
|
||
|
|
if (rendererSVGEl.nextSibling !== chart.a11yProxyContainer) {
|
||
|
|
chart.container.insertBefore(chart.a11yProxyContainer, rendererSVGEl.nextSibling);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {Highcharts.HTMLDOMElement} element
|
||
|
|
*/
|
||
|
|
createProxyContainerElement: function () {
|
||
|
|
var pc = doc.createElement('div');
|
||
|
|
pc.className = 'highcharts-a11y-proxy-container';
|
||
|
|
return pc;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Create an invisible proxy HTML button in the same position as an SVG
|
||
|
|
* element
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.SVGElement} svgElement
|
||
|
|
* The wrapped svg el to proxy.
|
||
|
|
* @param {Highcharts.HTMLDOMElement} parentGroup
|
||
|
|
* The proxy group element in the proxy container to add this button to.
|
||
|
|
* @param {Highcharts.SVGAttributes} [attributes]
|
||
|
|
* Additional attributes to set.
|
||
|
|
* @param {Highcharts.SVGElement} [posElement]
|
||
|
|
* Element to use for positioning instead of svgElement.
|
||
|
|
* @param {Function} [preClickEvent]
|
||
|
|
* Function to call before click event fires.
|
||
|
|
*
|
||
|
|
* @return {Highcharts.HTMLDOMElement} The proxy button.
|
||
|
|
*/
|
||
|
|
createProxyButton: function (svgElement, parentGroup, attributes, posElement, preClickEvent) {
|
||
|
|
var svgEl = svgElement.element, proxy = this.createElement('button'), attrs = merge({
|
||
|
|
'aria-label': svgEl.getAttribute('aria-label')
|
||
|
|
}, attributes), bBox = this.getElementPosition(posElement || svgElement);
|
||
|
|
Object.keys(attrs).forEach(function (prop) {
|
||
|
|
if (attrs[prop] !== null) {
|
||
|
|
proxy.setAttribute(prop, attrs[prop]);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
proxy.className = 'highcharts-a11y-proxy-button';
|
||
|
|
if (preClickEvent) {
|
||
|
|
this.addEvent(proxy, 'click', preClickEvent);
|
||
|
|
}
|
||
|
|
this.setProxyButtonStyle(proxy, bBox);
|
||
|
|
this.proxyMouseEventsForButton(svgEl, proxy);
|
||
|
|
// Add to chart div and unhide from screen readers
|
||
|
|
parentGroup.appendChild(proxy);
|
||
|
|
if (!attrs['aria-hidden']) {
|
||
|
|
unhideChartElementFromAT(this.chart, proxy);
|
||
|
|
}
|
||
|
|
return proxy;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get the position relative to chart container for a wrapped SVG element.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.SVGElement} element
|
||
|
|
* The element to calculate position for.
|
||
|
|
* @return {Highcharts.BBoxObject}
|
||
|
|
* Object with x and y props for the position.
|
||
|
|
*/
|
||
|
|
getElementPosition: function (element) {
|
||
|
|
var el = element.element, div = this.chart.renderTo;
|
||
|
|
if (div && el && el.getBoundingClientRect) {
|
||
|
|
var rectEl = el.getBoundingClientRect(), rectDiv = div.getBoundingClientRect();
|
||
|
|
return {
|
||
|
|
x: rectEl.left - rectDiv.left,
|
||
|
|
y: rectEl.top - rectDiv.top,
|
||
|
|
width: rectEl.right - rectEl.left,
|
||
|
|
height: rectEl.bottom - rectEl.top
|
||
|
|
};
|
||
|
|
}
|
||
|
|
return { x: 0, y: 0, width: 1, height: 1 };
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLElement} button
|
||
|
|
* @param {Highcharts.BBoxObject} bBox
|
||
|
|
*/
|
||
|
|
setProxyButtonStyle: function (button, bBox) {
|
||
|
|
merge(true, button.style, {
|
||
|
|
'border-width': 0,
|
||
|
|
'background-color': 'transparent',
|
||
|
|
cursor: 'pointer',
|
||
|
|
outline: 'none',
|
||
|
|
opacity: 0.001,
|
||
|
|
filter: 'alpha(opacity=1)',
|
||
|
|
'-ms-filter': 'progid:DXImageTransform.Microsoft.Alpha(Opacity=1)',
|
||
|
|
zIndex: 999,
|
||
|
|
overflow: 'hidden',
|
||
|
|
padding: 0,
|
||
|
|
margin: 0,
|
||
|
|
display: 'block',
|
||
|
|
position: 'absolute',
|
||
|
|
width: (bBox.width || 1) + 'px',
|
||
|
|
height: (bBox.height || 1) + 'px',
|
||
|
|
left: (bBox.x || 0) + 'px',
|
||
|
|
top: (bBox.y || 0) + 'px'
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLElement|Highcharts.HTMLDOMElement|
|
||
|
|
* Highcharts.SVGDOMElement|Highcharts.SVGElement} source
|
||
|
|
* @param {Highcharts.HTMLElement} button
|
||
|
|
*/
|
||
|
|
proxyMouseEventsForButton: function (source, button) {
|
||
|
|
var component = this;
|
||
|
|
[
|
||
|
|
'click', 'touchstart', 'touchend', 'touchcancel', 'touchmove',
|
||
|
|
'mouseover', 'mouseenter', 'mouseleave', 'mouseout'
|
||
|
|
].forEach(function (evtType) {
|
||
|
|
component.addEvent(button, evtType, function (e) {
|
||
|
|
var clonedEvent = component.cloneMouseEvent(e);
|
||
|
|
if (source) {
|
||
|
|
component.fireEventOnWrappedOrUnwrappedElement(source, clonedEvent);
|
||
|
|
}
|
||
|
|
e.stopPropagation();
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Utility function to clone a mouse event for re-dispatching.
|
||
|
|
* @private
|
||
|
|
* @param {global.MouseEvent} e The event to clone.
|
||
|
|
* @return {global.MouseEvent} The cloned event
|
||
|
|
*/
|
||
|
|
cloneMouseEvent: function (e) {
|
||
|
|
if (typeof win.MouseEvent === 'function') {
|
||
|
|
return new win.MouseEvent(e.type, e);
|
||
|
|
}
|
||
|
|
// No MouseEvent support, try using initMouseEvent
|
||
|
|
if (doc.createEvent) {
|
||
|
|
var evt = doc.createEvent('MouseEvent');
|
||
|
|
if (evt.initMouseEvent) {
|
||
|
|
evt.initMouseEvent(e.type, e.bubbles, // #10561, #12161
|
||
|
|
e.cancelable, e.view || win, e.detail, e.screenX, e.screenY, e.clientX, e.clientY, e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, e.button, e.relatedTarget);
|
||
|
|
return evt;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFakeMouseEvent(e.type);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove traces of the component.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
destroyBase: function () {
|
||
|
|
removeElement(this.chart.a11yProxyContainer);
|
||
|
|
this.domElementProvider.destroyCreatedElements();
|
||
|
|
this.eventProvider.removeAddedEvents();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
extend(AccessibilityComponent.prototype, functionsToOverrideByDerivedClasses);
|
||
|
|
|
||
|
|
return AccessibilityComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/KeyboardNavigation.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js'], _modules['modules/accessibility/utils/EventProvider.js']], function (H, U, HTMLUtilities, EventProvider) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Main keyboard navigation handling.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var win = H.win, doc = win.document;
|
||
|
|
var addEvent = U.addEvent, fireEvent = U.fireEvent;
|
||
|
|
var getElement = HTMLUtilities.getElement;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
// Add event listener to document to detect ESC key press and dismiss
|
||
|
|
// hover/popup content.
|
||
|
|
addEvent(doc, 'keydown', function (e) {
|
||
|
|
var keycode = e.which || e.keyCode;
|
||
|
|
var esc = 27;
|
||
|
|
if (keycode === esc && H.charts) {
|
||
|
|
H.charts.forEach(function (chart) {
|
||
|
|
if (chart && chart.dismissPopupContent) {
|
||
|
|
chart.dismissPopupContent();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
/**
|
||
|
|
* Dismiss popup content in chart, including export menu and tooltip.
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.dismissPopupContent = function () {
|
||
|
|
var chart = this;
|
||
|
|
fireEvent(this, 'dismissPopupContent', {}, function () {
|
||
|
|
if (chart.tooltip) {
|
||
|
|
chart.tooltip.hide(0);
|
||
|
|
}
|
||
|
|
chart.hideExportMenu();
|
||
|
|
});
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* The KeyboardNavigation class, containing the overall keyboard navigation
|
||
|
|
* logic for the chart.
|
||
|
|
*
|
||
|
|
* @requires module:modules/accessibility
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* Chart object
|
||
|
|
* @param {object} components
|
||
|
|
* Map of component names to AccessibilityComponent objects.
|
||
|
|
* @name Highcharts.KeyboardNavigation
|
||
|
|
*/
|
||
|
|
function KeyboardNavigation(chart, components) {
|
||
|
|
this.init(chart, components);
|
||
|
|
}
|
||
|
|
KeyboardNavigation.prototype = {
|
||
|
|
/**
|
||
|
|
* Initialize the class
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* Chart object
|
||
|
|
* @param {object} components
|
||
|
|
* Map of component names to AccessibilityComponent objects.
|
||
|
|
*/
|
||
|
|
init: function (chart, components) {
|
||
|
|
var _this = this;
|
||
|
|
var ep = this.eventProvider = new EventProvider();
|
||
|
|
this.chart = chart;
|
||
|
|
this.components = components;
|
||
|
|
this.modules = [];
|
||
|
|
this.currentModuleIx = 0;
|
||
|
|
ep.addEvent(chart.renderTo, 'keydown', function (e) { return _this.onKeydown(e); });
|
||
|
|
ep.addEvent(chart.container, 'focus', function (e) { return _this.onFocus(e); });
|
||
|
|
ep.addEvent(doc, 'mouseup', function () { return _this.onMouseUp(); });
|
||
|
|
ep.addEvent(chart.renderTo, 'mousedown', function () {
|
||
|
|
_this.isClickingChart = true;
|
||
|
|
});
|
||
|
|
ep.addEvent(chart.renderTo, 'mouseover', function () {
|
||
|
|
_this.pointerIsOverChart = true;
|
||
|
|
});
|
||
|
|
ep.addEvent(chart.renderTo, 'mouseout', function () {
|
||
|
|
_this.pointerIsOverChart = false;
|
||
|
|
});
|
||
|
|
// Run an update to get all modules
|
||
|
|
this.update();
|
||
|
|
// Init first module
|
||
|
|
if (this.modules.length) {
|
||
|
|
this.modules[0].init(1);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Update the modules for the keyboard navigation.
|
||
|
|
* @param {Array<string>} [order]
|
||
|
|
* Array specifying the tab order of the components.
|
||
|
|
*/
|
||
|
|
update: function (order) {
|
||
|
|
var a11yOptions = this.chart.options.accessibility, keyboardOptions = a11yOptions && a11yOptions.keyboardNavigation, components = this.components;
|
||
|
|
this.updateContainerTabindex();
|
||
|
|
if (keyboardOptions &&
|
||
|
|
keyboardOptions.enabled &&
|
||
|
|
order &&
|
||
|
|
order.length) {
|
||
|
|
// We (still) have keyboard navigation. Update module list
|
||
|
|
this.modules = order.reduce(function (modules, componentName) {
|
||
|
|
var navModules = components[componentName].getKeyboardNavigation();
|
||
|
|
return modules.concat(navModules);
|
||
|
|
}, []);
|
||
|
|
this.updateExitAnchor();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.modules = [];
|
||
|
|
this.currentModuleIx = 0;
|
||
|
|
this.removeExitAnchor();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Function to run on container focus
|
||
|
|
* @private
|
||
|
|
* @param {global.FocusEvent} e Browser focus event.
|
||
|
|
*/
|
||
|
|
onFocus: function (e) {
|
||
|
|
var _a;
|
||
|
|
var chart = this.chart;
|
||
|
|
var focusComesFromChart = (e.relatedTarget &&
|
||
|
|
chart.container.contains(e.relatedTarget));
|
||
|
|
// Init keyboard nav if tabbing into chart
|
||
|
|
if (!this.isClickingChart && !focusComesFromChart) {
|
||
|
|
(_a = this.modules[0]) === null || _a === void 0 ? void 0 : _a.init(1);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Reset chart navigation state if we click outside the chart and it's
|
||
|
|
* not already reset.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onMouseUp: function () {
|
||
|
|
delete this.isClickingChart;
|
||
|
|
if (!this.keyboardReset && !this.pointerIsOverChart) {
|
||
|
|
var chart = this.chart, curMod = this.modules &&
|
||
|
|
this.modules[this.currentModuleIx || 0];
|
||
|
|
if (curMod && curMod.terminate) {
|
||
|
|
curMod.terminate();
|
||
|
|
}
|
||
|
|
if (chart.focusElement) {
|
||
|
|
chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
this.currentModuleIx = 0;
|
||
|
|
this.keyboardReset = true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Function to run on keydown
|
||
|
|
* @private
|
||
|
|
* @param {global.KeyboardEvent} ev Browser keydown event.
|
||
|
|
*/
|
||
|
|
onKeydown: function (ev) {
|
||
|
|
var e = ev || win.event, preventDefault, curNavModule = this.modules && this.modules.length &&
|
||
|
|
this.modules[this.currentModuleIx];
|
||
|
|
// Used for resetting nav state when clicking outside chart
|
||
|
|
this.keyboardReset = false;
|
||
|
|
// If there is a nav module for the current index, run it.
|
||
|
|
// Otherwise, we are outside of the chart in some direction.
|
||
|
|
if (curNavModule) {
|
||
|
|
var response = curNavModule.run(e);
|
||
|
|
if (response === curNavModule.response.success) {
|
||
|
|
preventDefault = true;
|
||
|
|
}
|
||
|
|
else if (response === curNavModule.response.prev) {
|
||
|
|
preventDefault = this.prev();
|
||
|
|
}
|
||
|
|
else if (response === curNavModule.response.next) {
|
||
|
|
preventDefault = this.next();
|
||
|
|
}
|
||
|
|
if (preventDefault) {
|
||
|
|
e.preventDefault();
|
||
|
|
e.stopPropagation();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Go to previous module.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
prev: function () {
|
||
|
|
return this.move(-1);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Go to next module.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
next: function () {
|
||
|
|
return this.move(1);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Move to prev/next module.
|
||
|
|
* @private
|
||
|
|
* @param {number} direction
|
||
|
|
* Direction to move. +1 for next, -1 for prev.
|
||
|
|
* @return {boolean}
|
||
|
|
* True if there was a valid module in direction.
|
||
|
|
*/
|
||
|
|
move: function (direction) {
|
||
|
|
var curModule = this.modules && this.modules[this.currentModuleIx];
|
||
|
|
if (curModule && curModule.terminate) {
|
||
|
|
curModule.terminate(direction);
|
||
|
|
}
|
||
|
|
// Remove existing focus border if any
|
||
|
|
if (this.chart.focusElement) {
|
||
|
|
this.chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
this.currentModuleIx += direction;
|
||
|
|
var newModule = this.modules && this.modules[this.currentModuleIx];
|
||
|
|
if (newModule) {
|
||
|
|
if (newModule.validate && !newModule.validate()) {
|
||
|
|
return this.move(direction); // Invalid module, recurse
|
||
|
|
}
|
||
|
|
if (newModule.init) {
|
||
|
|
newModule.init(direction); // Valid module, init it
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// No module
|
||
|
|
this.currentModuleIx = 0; // Reset counter
|
||
|
|
// Set focus to chart or exit anchor depending on direction
|
||
|
|
if (direction > 0) {
|
||
|
|
this.exiting = true;
|
||
|
|
this.exitAnchor.focus();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.chart.container.focus();
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* We use an exit anchor to move focus out of chart whenever we want, by
|
||
|
|
* setting focus to this div and not preventing the default tab action. We
|
||
|
|
* also use this when users come back into the chart by tabbing back, in
|
||
|
|
* order to navigate from the end of the chart.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
updateExitAnchor: function () {
|
||
|
|
var endMarkerId = 'highcharts-end-of-chart-marker-' + this.chart.index, endMarker = getElement(endMarkerId);
|
||
|
|
this.removeExitAnchor();
|
||
|
|
if (endMarker) {
|
||
|
|
this.makeElementAnExitAnchor(endMarker);
|
||
|
|
this.exitAnchor = endMarker;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.createExitAnchor();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Chart container should have tabindex if navigation is enabled.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
updateContainerTabindex: function () {
|
||
|
|
var a11yOptions = this.chart.options.accessibility, keyboardOptions = a11yOptions && a11yOptions.keyboardNavigation, shouldHaveTabindex = !(keyboardOptions && keyboardOptions.enabled === false), container = this.chart.container, curTabindex = container.getAttribute('tabIndex');
|
||
|
|
if (shouldHaveTabindex && !curTabindex) {
|
||
|
|
container.setAttribute('tabindex', '0');
|
||
|
|
}
|
||
|
|
else if (!shouldHaveTabindex && curTabindex === '0') {
|
||
|
|
container.removeAttribute('tabindex');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
makeElementAnExitAnchor: function (el) {
|
||
|
|
el.setAttribute('class', 'highcharts-exit-anchor');
|
||
|
|
el.setAttribute('tabindex', '0');
|
||
|
|
el.setAttribute('aria-hidden', false);
|
||
|
|
// Handle focus
|
||
|
|
this.addExitAnchorEventsToEl(el);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Add new exit anchor to the chart.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
createExitAnchor: function () {
|
||
|
|
var chart = this.chart, exitAnchor = this.exitAnchor = doc.createElement('div');
|
||
|
|
chart.renderTo.appendChild(exitAnchor);
|
||
|
|
this.makeElementAnExitAnchor(exitAnchor);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
removeExitAnchor: function () {
|
||
|
|
if (this.exitAnchor && this.exitAnchor.parentNode) {
|
||
|
|
this.exitAnchor.parentNode
|
||
|
|
.removeChild(this.exitAnchor);
|
||
|
|
delete this.exitAnchor;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addExitAnchorEventsToEl: function (element) {
|
||
|
|
var chart = this.chart, keyboardNavigation = this;
|
||
|
|
this.eventProvider.addEvent(element, 'focus', function (ev) {
|
||
|
|
var e = ev || win.event, curModule, focusComesFromChart = (e.relatedTarget &&
|
||
|
|
chart.container.contains(e.relatedTarget)), comingInBackwards = !(focusComesFromChart || keyboardNavigation.exiting);
|
||
|
|
if (comingInBackwards) {
|
||
|
|
chart.renderTo.focus();
|
||
|
|
e.preventDefault();
|
||
|
|
// Move to last valid keyboard nav module
|
||
|
|
// Note the we don't run it, just set the index
|
||
|
|
if (keyboardNavigation.modules &&
|
||
|
|
keyboardNavigation.modules.length) {
|
||
|
|
keyboardNavigation.currentModuleIx =
|
||
|
|
keyboardNavigation.modules.length - 1;
|
||
|
|
curModule = keyboardNavigation.modules[keyboardNavigation.currentModuleIx];
|
||
|
|
// Validate the module
|
||
|
|
if (curModule &&
|
||
|
|
curModule.validate && !curModule.validate()) {
|
||
|
|
// Invalid. Try moving backwards to find next valid.
|
||
|
|
keyboardNavigation.prev();
|
||
|
|
}
|
||
|
|
else if (curModule) {
|
||
|
|
// We have a valid module, init it
|
||
|
|
curModule.init(-1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Don't skip the next focus, we only skip once.
|
||
|
|
keyboardNavigation.exiting = false;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove all traces of keyboard navigation.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
this.removeExitAnchor();
|
||
|
|
this.eventProvider.removeAddedEvents();
|
||
|
|
if (this.chart.container.getAttribute('tabindex') === '0') {
|
||
|
|
this.chart.container.removeAttribute('tabindex');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return KeyboardNavigation;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/LegendComponent.js', [_modules['parts/Globals.js'], _modules['parts/Legend.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, Legend, U, AccessibilityComponent, KeyboardNavigationHandler, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for chart legend.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var addEvent = U.addEvent, extend = U.extend, fireEvent = U.fireEvent;
|
||
|
|
var stripHTMLTags = HTMLUtilities.stripHTMLTagsFromString, removeElement = HTMLUtilities.removeElement;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function scrollLegendToItem(legend, itemIx) {
|
||
|
|
var itemPage = legend.allItems[itemIx].pageIx, curPage = legend.currentPage;
|
||
|
|
if (typeof itemPage !== 'undefined' && itemPage + 1 !== curPage) {
|
||
|
|
legend.scroll(1 + itemPage - curPage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function shouldDoLegendA11y(chart) {
|
||
|
|
var items = chart.legend && chart.legend.allItems, legendA11yOptions = (chart.options.legend.accessibility || {});
|
||
|
|
return !!(items && items.length &&
|
||
|
|
!(chart.colorAxis && chart.colorAxis.length) &&
|
||
|
|
legendA11yOptions.enabled !== false);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Highlight legend item by index.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightLegendItem
|
||
|
|
*
|
||
|
|
* @param {number} ix
|
||
|
|
*
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightLegendItem = function (ix) {
|
||
|
|
var items = this.legend.allItems, oldIx = this.highlightedLegendItemIx;
|
||
|
|
if (items[ix]) {
|
||
|
|
if (items[oldIx]) {
|
||
|
|
fireEvent(items[oldIx].legendGroup.element, 'mouseout');
|
||
|
|
}
|
||
|
|
scrollLegendToItem(this.legend, ix);
|
||
|
|
this.setFocusToElement(items[ix].legendItem, items[ix].a11yProxyElement);
|
||
|
|
fireEvent(items[ix].legendGroup.element, 'mouseover');
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
// Keep track of pressed state for legend items
|
||
|
|
addEvent(Legend, 'afterColorizeItem', function (e) {
|
||
|
|
var chart = this.chart, a11yOptions = chart.options.accessibility, legendItem = e.item;
|
||
|
|
if (a11yOptions.enabled && legendItem && legendItem.a11yProxyElement) {
|
||
|
|
legendItem.a11yProxyElement.setAttribute('aria-pressed', e.visible ? 'false' : 'true');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
/**
|
||
|
|
* The LegendComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.LegendComponent
|
||
|
|
*/
|
||
|
|
var LegendComponent = function () { };
|
||
|
|
LegendComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(LegendComponent.prototype, /** @lends Highcharts.LegendComponent */ {
|
||
|
|
/**
|
||
|
|
* Init the component
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var component = this;
|
||
|
|
this.addEvent(Legend, 'afterScroll', function () {
|
||
|
|
if (this.chart === component.chart) {
|
||
|
|
component.updateProxies();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
updateLegendItemProxyVisibility: function () {
|
||
|
|
var legend = this.chart.legend, items = legend.allItems || [], curPage = legend.currentPage || 1, clipHeight = legend.clipHeight || 0;
|
||
|
|
items.forEach(function (item) {
|
||
|
|
var itemPage = item.pageIx || 0, y = item._legendItemPos ? item._legendItemPos[1] : 0, h = item.legendItem ? Math.round(item.legendItem.getBBox().height) : 0, hide = y + h - legend.pages[itemPage] > clipHeight || itemPage !== curPage - 1;
|
||
|
|
if (item.a11yProxyElement) {
|
||
|
|
item.a11yProxyElement.style.visibility = hide ?
|
||
|
|
'hidden' : 'visible';
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* The legend needs updates on every render, in order to update positioning
|
||
|
|
* of the proxy overlays.
|
||
|
|
*/
|
||
|
|
onChartRender: function () {
|
||
|
|
var component = this;
|
||
|
|
// Ignore render after proxy clicked. No need to destroy it, and
|
||
|
|
// destroying also kills focus.
|
||
|
|
if (this.legendProxyButtonClicked) {
|
||
|
|
delete component.legendProxyButtonClicked;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
this.updateProxies();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
updateProxies: function () {
|
||
|
|
removeElement(this.legendProxyGroup);
|
||
|
|
if (shouldDoLegendA11y(this.chart)) {
|
||
|
|
this.addLegendProxyGroup();
|
||
|
|
this.proxyLegendItems();
|
||
|
|
this.updateLegendItemProxyVisibility();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addLegendProxyGroup: function () {
|
||
|
|
var a11yOptions = this.chart.options.accessibility, groupLabel = this.chart.langFormat('accessibility.legend.legendLabel', {}), groupRole = a11yOptions.landmarkVerbosity === 'all' ?
|
||
|
|
'region' : null;
|
||
|
|
this.legendProxyGroup = this.addProxyGroup({
|
||
|
|
'aria-label': groupLabel,
|
||
|
|
'role': groupRole
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
proxyLegendItems: function () {
|
||
|
|
var component = this, items = (this.chart.legend &&
|
||
|
|
this.chart.legend.allItems || []);
|
||
|
|
items.forEach(function (item) {
|
||
|
|
if (item.legendItem && item.legendItem.element) {
|
||
|
|
component.proxyLegendItem(item);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.BubbleLegend|Highcharts.Point|Highcharts.Series} item
|
||
|
|
*/
|
||
|
|
proxyLegendItem: function (item) {
|
||
|
|
var component = this, itemLabel = this.chart.langFormat('accessibility.legend.legendItem', {
|
||
|
|
chart: this.chart,
|
||
|
|
itemName: stripHTMLTags(item.name)
|
||
|
|
}), attribs = {
|
||
|
|
tabindex: -1,
|
||
|
|
'aria-pressed': !item.visible,
|
||
|
|
'aria-label': itemLabel
|
||
|
|
},
|
||
|
|
// Keep track of when we should ignore next render
|
||
|
|
preClickEvent = function () {
|
||
|
|
component.legendProxyButtonClicked = true;
|
||
|
|
},
|
||
|
|
// Considers useHTML
|
||
|
|
proxyPositioningElement = item.legendGroup.div ?
|
||
|
|
item.legendItem : item.legendGroup;
|
||
|
|
item.a11yProxyElement = this.createProxyButton(item.legendItem, this.legendProxyGroup, attribs, proxyPositioningElement, preClickEvent);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for this component.
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () {
|
||
|
|
var keys = this.keyCodes, component = this, chart = this.chart;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[
|
||
|
|
[keys.left, keys.right, keys.up, keys.down],
|
||
|
|
function (keyCode) {
|
||
|
|
return component.onKbdArrowKey(this, keyCode);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
[keys.enter, keys.space],
|
||
|
|
function () {
|
||
|
|
return component.onKbdClick(this);
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
validate: function () {
|
||
|
|
return component.shouldHaveLegendNavigation();
|
||
|
|
},
|
||
|
|
init: function (direction) {
|
||
|
|
return component.onKbdNavigationInit(direction);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @param {number} keyCode
|
||
|
|
* @return {number}
|
||
|
|
* Response code
|
||
|
|
*/
|
||
|
|
onKbdArrowKey: function (keyboardNavigationHandler, keyCode) {
|
||
|
|
var keys = this.keyCodes, response = keyboardNavigationHandler.response, chart = this.chart, a11yOptions = chart.options.accessibility, numItems = chart.legend.allItems.length, direction = (keyCode === keys.left || keyCode === keys.up) ? -1 : 1;
|
||
|
|
var res = chart.highlightLegendItem(this.highlightedLegendItemIx + direction);
|
||
|
|
if (res) {
|
||
|
|
this.highlightedLegendItemIx += direction;
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
if (numItems > 1 &&
|
||
|
|
a11yOptions.keyboardNavigation.wrapAround) {
|
||
|
|
keyboardNavigationHandler.init(direction);
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
// No wrap, move
|
||
|
|
return response[direction > 0 ? 'next' : 'prev'];
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @return {number}
|
||
|
|
* Response code
|
||
|
|
*/
|
||
|
|
onKbdClick: function (keyboardNavigationHandler) {
|
||
|
|
var legendItem = this.chart.legend.allItems[this.highlightedLegendItemIx];
|
||
|
|
if (legendItem && legendItem.a11yProxyElement) {
|
||
|
|
fireEvent(legendItem.a11yProxyElement, 'click');
|
||
|
|
}
|
||
|
|
return keyboardNavigationHandler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {boolean|undefined}
|
||
|
|
*/
|
||
|
|
shouldHaveLegendNavigation: function () {
|
||
|
|
var chart = this.chart, legendOptions = chart.options.legend || {}, hasLegend = chart.legend && chart.legend.allItems, hasColorAxis = chart.colorAxis && chart.colorAxis.length, legendA11yOptions = (legendOptions.accessibility || {});
|
||
|
|
return !!(hasLegend &&
|
||
|
|
chart.legend.display &&
|
||
|
|
!hasColorAxis &&
|
||
|
|
legendA11yOptions.enabled &&
|
||
|
|
legendA11yOptions.keyboardNavigation &&
|
||
|
|
legendA11yOptions.keyboardNavigation.enabled);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {number} direction
|
||
|
|
*/
|
||
|
|
onKbdNavigationInit: function (direction) {
|
||
|
|
var chart = this.chart, lastIx = chart.legend.allItems.length - 1, ixToHighlight = direction > 0 ? 0 : lastIx;
|
||
|
|
chart.highlightLegendItem(ixToHighlight);
|
||
|
|
this.highlightedLegendItemIx = ixToHighlight;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return LegendComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/MenuComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, U, AccessibilityComponent, KeyboardNavigationHandler, ChartUtilities, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for exporting menu.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT;
|
||
|
|
var removeElement = HTMLUtilities.removeElement, getFakeMouseEvent = HTMLUtilities.getFakeMouseEvent;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* Get the wrapped export button element of a chart.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* @returns {Highcharts.SVGElement}
|
||
|
|
*/
|
||
|
|
function getExportMenuButtonElement(chart) {
|
||
|
|
return chart.exportSVGElements && chart.exportSVGElements[0];
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Show the export menu and focus the first item (if exists).
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#showExportMenu
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.showExportMenu = function () {
|
||
|
|
var exportButton = getExportMenuButtonElement(this);
|
||
|
|
if (exportButton) {
|
||
|
|
var el = exportButton.element;
|
||
|
|
if (el.onclick) {
|
||
|
|
el.onclick(getFakeMouseEvent('click'));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#hideExportMenu
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.hideExportMenu = function () {
|
||
|
|
var chart = this, exportList = chart.exportDivElements;
|
||
|
|
if (exportList && chart.exportContextMenu) {
|
||
|
|
// Reset hover states etc.
|
||
|
|
exportList.forEach(function (el) {
|
||
|
|
if (el.className === 'highcharts-menu-item' && el.onmouseout) {
|
||
|
|
el.onmouseout(getFakeMouseEvent('mouseout'));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
chart.highlightedExportItemIx = 0;
|
||
|
|
// Hide the menu div
|
||
|
|
chart.exportContextMenu.hideMenu();
|
||
|
|
// Make sure the chart has focus and can capture keyboard events
|
||
|
|
chart.container.focus();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Highlight export menu item by index.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightExportItem
|
||
|
|
*
|
||
|
|
* @param {number} ix
|
||
|
|
*
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightExportItem = function (ix) {
|
||
|
|
var listItem = this.exportDivElements && this.exportDivElements[ix], curHighlighted = this.exportDivElements &&
|
||
|
|
this.exportDivElements[this.highlightedExportItemIx], hasSVGFocusSupport;
|
||
|
|
if (listItem &&
|
||
|
|
listItem.tagName === 'LI' &&
|
||
|
|
!(listItem.children && listItem.children.length)) {
|
||
|
|
// Test if we have focus support for SVG elements
|
||
|
|
hasSVGFocusSupport = !!(this.renderTo.getElementsByTagName('g')[0] || {}).focus;
|
||
|
|
// Only focus if we can set focus back to the elements after
|
||
|
|
// destroying the menu (#7422)
|
||
|
|
if (listItem.focus && hasSVGFocusSupport) {
|
||
|
|
listItem.focus();
|
||
|
|
}
|
||
|
|
if (curHighlighted && curHighlighted.onmouseout) {
|
||
|
|
curHighlighted.onmouseout(getFakeMouseEvent('mouseout'));
|
||
|
|
}
|
||
|
|
if (listItem.onmouseover) {
|
||
|
|
listItem.onmouseover(getFakeMouseEvent('mouseover'));
|
||
|
|
}
|
||
|
|
this.highlightedExportItemIx = ix;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Try to highlight the last valid export menu item.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightLastExportItem
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightLastExportItem = function () {
|
||
|
|
var chart = this, i;
|
||
|
|
if (chart.exportDivElements) {
|
||
|
|
i = chart.exportDivElements.length;
|
||
|
|
while (i--) {
|
||
|
|
if (chart.highlightExportItem(i)) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
*/
|
||
|
|
function exportingShouldHaveA11y(chart) {
|
||
|
|
var exportingOpts = chart.options.exporting, exportButton = getExportMenuButtonElement(chart);
|
||
|
|
return !!(exportingOpts &&
|
||
|
|
exportingOpts.enabled !== false &&
|
||
|
|
exportingOpts.accessibility &&
|
||
|
|
exportingOpts.accessibility.enabled &&
|
||
|
|
exportButton &&
|
||
|
|
exportButton.element);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* The MenuComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.MenuComponent
|
||
|
|
*/
|
||
|
|
var MenuComponent = function () { };
|
||
|
|
MenuComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(MenuComponent.prototype, /** @lends Highcharts.MenuComponent */ {
|
||
|
|
/**
|
||
|
|
* Init the component
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var chart = this.chart, component = this;
|
||
|
|
this.addEvent(chart, 'exportMenuShown', function () {
|
||
|
|
component.onMenuShown();
|
||
|
|
});
|
||
|
|
this.addEvent(chart, 'exportMenuHidden', function () {
|
||
|
|
component.onMenuHidden();
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onMenuHidden: function () {
|
||
|
|
var menu = this.chart.exportContextMenu;
|
||
|
|
if (menu) {
|
||
|
|
menu.setAttribute('aria-hidden', 'true');
|
||
|
|
}
|
||
|
|
this.isExportMenuShown = false;
|
||
|
|
this.setExportButtonExpandedState('false');
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onMenuShown: function () {
|
||
|
|
var chart = this.chart, menu = chart.exportContextMenu;
|
||
|
|
if (menu) {
|
||
|
|
this.addAccessibleContextMenuAttribs();
|
||
|
|
unhideChartElementFromAT(chart, menu);
|
||
|
|
}
|
||
|
|
this.isExportMenuShown = true;
|
||
|
|
this.setExportButtonExpandedState('true');
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} stateStr
|
||
|
|
*/
|
||
|
|
setExportButtonExpandedState: function (stateStr) {
|
||
|
|
var button = this.exportButtonProxy;
|
||
|
|
if (button) {
|
||
|
|
button.setAttribute('aria-expanded', stateStr);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Called on each render of the chart. We need to update positioning of the
|
||
|
|
* proxy overlay.
|
||
|
|
*/
|
||
|
|
onChartRender: function () {
|
||
|
|
var chart = this.chart, a11yOptions = chart.options.accessibility;
|
||
|
|
// Always start with a clean slate
|
||
|
|
removeElement(this.exportProxyGroup);
|
||
|
|
// Set screen reader properties on export menu
|
||
|
|
if (exportingShouldHaveA11y(chart)) {
|
||
|
|
// Proxy button and group
|
||
|
|
this.exportProxyGroup = this.addProxyGroup(
|
||
|
|
// Wrap in a region div if verbosity is high
|
||
|
|
a11yOptions.landmarkVerbosity === 'all' ? {
|
||
|
|
'aria-label': chart.langFormat('accessibility.exporting.exportRegionLabel', { chart: chart }),
|
||
|
|
'role': 'region'
|
||
|
|
} : {});
|
||
|
|
var button = getExportMenuButtonElement(this.chart);
|
||
|
|
this.exportButtonProxy = this.createProxyButton(button, this.exportProxyGroup, {
|
||
|
|
'aria-label': chart.langFormat('accessibility.exporting.menuButtonLabel', { chart: chart }),
|
||
|
|
'aria-expanded': 'false'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addAccessibleContextMenuAttribs: function () {
|
||
|
|
var chart = this.chart, exportList = chart.exportDivElements;
|
||
|
|
if (exportList && exportList.length) {
|
||
|
|
// Set tabindex on the menu items to allow focusing by script
|
||
|
|
// Set role to give screen readers a chance to pick up the contents
|
||
|
|
exportList.forEach(function (item) {
|
||
|
|
if (item.tagName === 'LI' &&
|
||
|
|
!(item.children && item.children.length)) {
|
||
|
|
item.setAttribute('tabindex', -1);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
item.setAttribute('aria-hidden', 'true');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
// Set accessibility properties on parent div
|
||
|
|
var parentDiv = exportList[0].parentNode;
|
||
|
|
parentDiv.removeAttribute('aria-hidden');
|
||
|
|
parentDiv.setAttribute('aria-label', chart.langFormat('accessibility.exporting.chartMenuLabel', { chart: chart }));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for this component.
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () {
|
||
|
|
var keys = this.keyCodes, chart = this.chart, component = this;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
// Arrow prev handler
|
||
|
|
[
|
||
|
|
[keys.left, keys.up],
|
||
|
|
function () {
|
||
|
|
return component.onKbdPrevious(this);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
// Arrow next handler
|
||
|
|
[
|
||
|
|
[keys.right, keys.down],
|
||
|
|
function () {
|
||
|
|
return component.onKbdNext(this);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
// Click handler
|
||
|
|
[
|
||
|
|
[keys.enter, keys.space],
|
||
|
|
function () {
|
||
|
|
return component.onKbdClick(this);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
// ESC handler
|
||
|
|
[
|
||
|
|
[keys.esc],
|
||
|
|
function () {
|
||
|
|
return this.response.prev;
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
// Only run exporting navigation if exporting support exists and is
|
||
|
|
// enabled on chart
|
||
|
|
validate: function () {
|
||
|
|
return chart.exportChart &&
|
||
|
|
chart.options.exporting.enabled !== false &&
|
||
|
|
chart.options.exporting.accessibility.enabled !==
|
||
|
|
false;
|
||
|
|
},
|
||
|
|
// Focus export menu button
|
||
|
|
init: function () {
|
||
|
|
var exportBtn = component.exportButtonProxy, exportGroup = chart.exportingGroup;
|
||
|
|
if (exportGroup && exportBtn) {
|
||
|
|
chart.setFocusToElement(exportGroup, exportBtn);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
// Hide the menu
|
||
|
|
terminate: function () {
|
||
|
|
chart.hideExportMenu();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @return {number}
|
||
|
|
* Response code
|
||
|
|
*/
|
||
|
|
onKbdPrevious: function (keyboardNavigationHandler) {
|
||
|
|
var chart = this.chart, a11yOptions = chart.options.accessibility, response = keyboardNavigationHandler.response, i = chart.highlightedExportItemIx || 0;
|
||
|
|
// Try to highlight prev item in list. Highlighting e.g.
|
||
|
|
// separators will fail.
|
||
|
|
while (i--) {
|
||
|
|
if (chart.highlightExportItem(i)) {
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// We failed, so wrap around or move to prev module
|
||
|
|
if (a11yOptions.keyboardNavigation.wrapAround) {
|
||
|
|
chart.highlightLastExportItem();
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
return response.prev;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @return {number}
|
||
|
|
* Response code
|
||
|
|
*/
|
||
|
|
onKbdNext: function (keyboardNavigationHandler) {
|
||
|
|
var chart = this.chart, a11yOptions = chart.options.accessibility, response = keyboardNavigationHandler.response, i = (chart.highlightedExportItemIx || 0) + 1;
|
||
|
|
// Try to highlight next item in list. Highlighting e.g.
|
||
|
|
// separators will fail.
|
||
|
|
for (; i < chart.exportDivElements.length; ++i) {
|
||
|
|
if (chart.highlightExportItem(i)) {
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// We failed, so wrap around or move to next module
|
||
|
|
if (a11yOptions.keyboardNavigation.wrapAround) {
|
||
|
|
chart.highlightExportItem(0);
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
return response.next;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @return {number}
|
||
|
|
* Response code
|
||
|
|
*/
|
||
|
|
onKbdClick: function (keyboardNavigationHandler) {
|
||
|
|
var chart = this.chart, curHighlightedItem = chart.exportDivElements[chart.highlightedExportItemIx], exportButtonElement = getExportMenuButtonElement(chart).element;
|
||
|
|
if (this.isExportMenuShown) {
|
||
|
|
this.fakeClickEvent(curHighlightedItem);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.fakeClickEvent(exportButtonElement);
|
||
|
|
chart.highlightExportItem(0);
|
||
|
|
}
|
||
|
|
return keyboardNavigationHandler.response.success;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return MenuComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/SeriesComponent/SeriesKeyboardNavigation.js', [_modules['parts/Globals.js'], _modules['parts/Point.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['modules/accessibility/utils/EventProvider.js'], _modules['modules/accessibility/utils/chartUtilities.js']], function (H, Point, U, KeyboardNavigationHandler, EventProvider, ChartUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Handle keyboard navigation for series.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend, defined = U.defined;
|
||
|
|
var getPointFromXY = ChartUtilities.getPointFromXY, getSeriesFromName = ChartUtilities.getSeriesFromName, scrollToPoint = ChartUtilities.scrollToPoint;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/*
|
||
|
|
* Set for which series types it makes sense to move to the closest point with
|
||
|
|
* up/down arrows, and which series types should just move to next series.
|
||
|
|
*/
|
||
|
|
H.Series.prototype.keyboardMoveVertical = true;
|
||
|
|
['column', 'pie'].forEach(function (type) {
|
||
|
|
if (H.seriesTypes[type]) {
|
||
|
|
H.seriesTypes[type].prototype.keyboardMoveVertical = false;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
/**
|
||
|
|
* Get the index of a point in a series. This is needed when using e.g. data
|
||
|
|
* grouping.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function getPointIndex
|
||
|
|
*
|
||
|
|
* @param {Highcharts.AccessibilityPoint} point
|
||
|
|
* The point to find index of.
|
||
|
|
*
|
||
|
|
* @return {number|undefined}
|
||
|
|
* The index in the series.points array of the point.
|
||
|
|
*/
|
||
|
|
function getPointIndex(point) {
|
||
|
|
var index = point.index, points = point.series.points, i = points.length;
|
||
|
|
if (points[index] !== point) {
|
||
|
|
while (i--) {
|
||
|
|
if (points[i] === point) {
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Determine if series navigation should be skipped
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function isSkipSeries
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
*
|
||
|
|
* @return {boolean|number|undefined}
|
||
|
|
*/
|
||
|
|
function isSkipSeries(series) {
|
||
|
|
var a11yOptions = series.chart.options.accessibility, seriesNavOptions = a11yOptions.keyboardNavigation.seriesNavigation, seriesA11yOptions = series.options.accessibility || {}, seriesKbdNavOptions = seriesA11yOptions.keyboardNavigation;
|
||
|
|
return seriesKbdNavOptions && seriesKbdNavOptions.enabled === false ||
|
||
|
|
seriesA11yOptions.enabled === false ||
|
||
|
|
series.options.enableMouseTracking === false || // #8440
|
||
|
|
!series.visible ||
|
||
|
|
// Skip all points in a series where pointNavigationEnabledThreshold is
|
||
|
|
// reached
|
||
|
|
(seriesNavOptions.pointNavigationEnabledThreshold &&
|
||
|
|
seriesNavOptions.pointNavigationEnabledThreshold <=
|
||
|
|
series.points.length);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Determine if navigation for a point should be skipped
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function isSkipPoint
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
*
|
||
|
|
* @return {boolean|number|undefined}
|
||
|
|
*/
|
||
|
|
function isSkipPoint(point) {
|
||
|
|
var a11yOptions = point.series.chart.options.accessibility;
|
||
|
|
return point.isNull &&
|
||
|
|
a11yOptions.keyboardNavigation.seriesNavigation.skipNullPoints ||
|
||
|
|
point.visible === false ||
|
||
|
|
isSkipSeries(point.series);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Get the point in a series that is closest (in pixel distance) to a reference
|
||
|
|
* point. Optionally supply weight factors for x and y directions.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function getClosestPoint
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @param {number} [xWeight]
|
||
|
|
* @param {number} [yWeight]
|
||
|
|
*
|
||
|
|
* @return {Highcharts.Point|undefined}
|
||
|
|
*/
|
||
|
|
function getClosestPoint(point, series, xWeight, yWeight) {
|
||
|
|
var minDistance = Infinity, dPoint, minIx, distance, i = series.points.length, hasUndefinedPosition = function (point) {
|
||
|
|
return !(defined(point.plotX) && defined(point.plotY));
|
||
|
|
};
|
||
|
|
if (hasUndefinedPosition(point)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
while (i--) {
|
||
|
|
dPoint = series.points[i];
|
||
|
|
if (hasUndefinedPosition(dPoint)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
distance = (point.plotX - dPoint.plotX) *
|
||
|
|
(point.plotX - dPoint.plotX) *
|
||
|
|
(xWeight || 1) +
|
||
|
|
(point.plotY - dPoint.plotY) *
|
||
|
|
(point.plotY - dPoint.plotY) *
|
||
|
|
(yWeight || 1);
|
||
|
|
if (distance < minDistance) {
|
||
|
|
minDistance = distance;
|
||
|
|
minIx = i;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return defined(minIx) ? series.points[minIx] : void 0;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Highlights a point (show tooltip and display hover state).
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Point#highlight
|
||
|
|
*
|
||
|
|
* @return {Highcharts.Point}
|
||
|
|
* This highlighted point.
|
||
|
|
*/
|
||
|
|
Point.prototype.highlight = function () {
|
||
|
|
var chart = this.series.chart;
|
||
|
|
if (!this.isNull) {
|
||
|
|
this.onMouseOver(); // Show the hover marker and tooltip
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (chart.tooltip) {
|
||
|
|
chart.tooltip.hide(0);
|
||
|
|
}
|
||
|
|
// Don't call blur on the element, as it messes up the chart div's focus
|
||
|
|
}
|
||
|
|
scrollToPoint(this);
|
||
|
|
// We focus only after calling onMouseOver because the state change can
|
||
|
|
// change z-index and mess up the element.
|
||
|
|
if (this.graphic) {
|
||
|
|
chart.setFocusToElement(this.graphic);
|
||
|
|
}
|
||
|
|
chart.highlightedPoint = this;
|
||
|
|
return this;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Function to highlight next/previous point in chart.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightAdjacentPoint
|
||
|
|
*
|
||
|
|
* @param {boolean} next
|
||
|
|
* Flag for the direction.
|
||
|
|
*
|
||
|
|
* @return {Highcharts.Point|boolean}
|
||
|
|
* Returns highlighted point on success, false on failure (no adjacent
|
||
|
|
* point to highlight in chosen direction).
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightAdjacentPoint = function (next) {
|
||
|
|
var chart = this, series = chart.series, curPoint = chart.highlightedPoint, curPointIndex = curPoint && getPointIndex(curPoint) || 0, curPoints = (curPoint && curPoint.series.points), lastSeries = chart.series && chart.series[chart.series.length - 1], lastPoint = lastSeries && lastSeries.points &&
|
||
|
|
lastSeries.points[lastSeries.points.length - 1], newSeries, newPoint;
|
||
|
|
// If no points, return false
|
||
|
|
if (!series[0] || !series[0].points) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (!curPoint) {
|
||
|
|
// No point is highlighted yet. Try first/last point depending on move
|
||
|
|
// direction
|
||
|
|
newPoint = next ? series[0].points[0] : lastPoint;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// We have a highlighted point.
|
||
|
|
// Grab next/prev point & series
|
||
|
|
newSeries = series[curPoint.series.index + (next ? 1 : -1)];
|
||
|
|
newPoint = curPoints[curPointIndex + (next ? 1 : -1)];
|
||
|
|
if (!newPoint && newSeries) {
|
||
|
|
// Done with this series, try next one
|
||
|
|
newPoint = newSeries.points[next ? 0 : newSeries.points.length - 1];
|
||
|
|
}
|
||
|
|
// If there is no adjacent point, we return false
|
||
|
|
if (!newPoint) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Recursively skip points
|
||
|
|
if (isSkipPoint(newPoint)) {
|
||
|
|
// If we skip this whole series, move to the end of the series before we
|
||
|
|
// recurse, just to optimize
|
||
|
|
newSeries = newPoint.series;
|
||
|
|
if (isSkipSeries(newSeries)) {
|
||
|
|
chart.highlightedPoint = next ?
|
||
|
|
newSeries.points[newSeries.points.length - 1] :
|
||
|
|
newSeries.points[0];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Otherwise, just move one point
|
||
|
|
chart.highlightedPoint = newPoint;
|
||
|
|
}
|
||
|
|
// Retry
|
||
|
|
return chart.highlightAdjacentPoint(next);
|
||
|
|
}
|
||
|
|
// There is an adjacent point, highlight it
|
||
|
|
return newPoint.highlight();
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Highlight first valid point in a series. Returns the point if successfully
|
||
|
|
* highlighted, otherwise false. If there is a highlighted point in the series,
|
||
|
|
* use that as starting point.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Series#highlightFirstValidPoint
|
||
|
|
*
|
||
|
|
* @return {boolean|Highcharts.Point}
|
||
|
|
*/
|
||
|
|
H.Series.prototype.highlightFirstValidPoint = function () {
|
||
|
|
var curPoint = this.chart.highlightedPoint, start = (curPoint && curPoint.series) === this ?
|
||
|
|
getPointIndex(curPoint) :
|
||
|
|
0, points = this.points, len = points.length;
|
||
|
|
if (points && len) {
|
||
|
|
for (var i = start; i < len; ++i) {
|
||
|
|
if (!isSkipPoint(points[i])) {
|
||
|
|
return points[i].highlight();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (var j = start; j >= 0; --j) {
|
||
|
|
if (!isSkipPoint(points[j])) {
|
||
|
|
return points[j].highlight();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Highlight next/previous series in chart. Returns false if no adjacent series
|
||
|
|
* in the direction, otherwise returns new highlighted point.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightAdjacentSeries
|
||
|
|
*
|
||
|
|
* @param {boolean} down
|
||
|
|
*
|
||
|
|
* @return {Highcharts.Point|boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightAdjacentSeries = function (down) {
|
||
|
|
var chart = this, newSeries, newPoint, adjacentNewPoint, curPoint = chart.highlightedPoint, lastSeries = chart.series && chart.series[chart.series.length - 1], lastPoint = lastSeries && lastSeries.points &&
|
||
|
|
lastSeries.points[lastSeries.points.length - 1];
|
||
|
|
// If no point is highlighted, highlight the first/last point
|
||
|
|
if (!chart.highlightedPoint) {
|
||
|
|
newSeries = down ? (chart.series && chart.series[0]) : lastSeries;
|
||
|
|
newPoint = down ?
|
||
|
|
(newSeries && newSeries.points && newSeries.points[0]) : lastPoint;
|
||
|
|
return newPoint ? newPoint.highlight() : false;
|
||
|
|
}
|
||
|
|
newSeries = chart.series[curPoint.series.index + (down ? -1 : 1)];
|
||
|
|
if (!newSeries) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// We have a new series in this direction, find the right point
|
||
|
|
// Weigh xDistance as counting much higher than Y distance
|
||
|
|
newPoint = getClosestPoint(curPoint, newSeries, 4);
|
||
|
|
if (!newPoint) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// New series and point exists, but we might want to skip it
|
||
|
|
if (isSkipSeries(newSeries)) {
|
||
|
|
// Skip the series
|
||
|
|
newPoint.highlight();
|
||
|
|
adjacentNewPoint = chart.highlightAdjacentSeries(down); // Try recurse
|
||
|
|
if (!adjacentNewPoint) {
|
||
|
|
// Recurse failed
|
||
|
|
curPoint.highlight();
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// Recurse succeeded
|
||
|
|
return adjacentNewPoint;
|
||
|
|
}
|
||
|
|
// Highlight the new point or any first valid point back or forwards from it
|
||
|
|
newPoint.highlight();
|
||
|
|
return newPoint.series.highlightFirstValidPoint();
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Highlight the closest point vertically.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightAdjacentPointVertical
|
||
|
|
*
|
||
|
|
* @param {boolean} down
|
||
|
|
*
|
||
|
|
* @return {Highcharts.Point|boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightAdjacentPointVertical = function (down) {
|
||
|
|
var curPoint = this.highlightedPoint, minDistance = Infinity, bestPoint;
|
||
|
|
if (!defined(curPoint.plotX) || !defined(curPoint.plotY)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
this.series.forEach(function (series) {
|
||
|
|
if (isSkipSeries(series)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
series.points.forEach(function (point) {
|
||
|
|
if (!defined(point.plotY) || !defined(point.plotX) ||
|
||
|
|
point === curPoint) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var yDistance = point.plotY - curPoint.plotY, width = Math.abs(point.plotX - curPoint.plotX), distance = Math.abs(yDistance) * Math.abs(yDistance) +
|
||
|
|
width * width * 4; // Weigh horizontal distance highly
|
||
|
|
// Reverse distance number if axis is reversed
|
||
|
|
if (series.yAxis && series.yAxis.reversed) {
|
||
|
|
yDistance *= -1;
|
||
|
|
}
|
||
|
|
if (yDistance <= 0 && down || yDistance >= 0 && !down || // Chk dir
|
||
|
|
distance < 5 || // Points in same spot => infinite loop
|
||
|
|
isSkipPoint(point)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (distance < minDistance) {
|
||
|
|
minDistance = distance;
|
||
|
|
bestPoint = point;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
return bestPoint ? bestPoint.highlight() : false;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* @return {Highcharts.Point|boolean}
|
||
|
|
*/
|
||
|
|
function highlightFirstValidPointInChart(chart) {
|
||
|
|
var res = false;
|
||
|
|
delete chart.highlightedPoint;
|
||
|
|
res = chart.series.reduce(function (acc, cur) {
|
||
|
|
return acc || cur.highlightFirstValidPoint();
|
||
|
|
}, false);
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* @return {Highcharts.Point|boolean}
|
||
|
|
*/
|
||
|
|
function highlightLastValidPointInChart(chart) {
|
||
|
|
var numSeries = chart.series.length, i = numSeries, res = false;
|
||
|
|
while (i--) {
|
||
|
|
chart.highlightedPoint = chart.series[i].points[chart.series[i].points.length - 1];
|
||
|
|
// Highlight first valid point in the series will also
|
||
|
|
// look backwards. It always starts from currently
|
||
|
|
// highlighted point.
|
||
|
|
res = chart.series[i].highlightFirstValidPoint();
|
||
|
|
if (res) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
*/
|
||
|
|
function updateChartFocusAfterDrilling(chart) {
|
||
|
|
highlightFirstValidPointInChart(chart);
|
||
|
|
if (chart.focusElement) {
|
||
|
|
chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.SeriesKeyboardNavigation
|
||
|
|
*/
|
||
|
|
function SeriesKeyboardNavigation(chart, keyCodes) {
|
||
|
|
this.keyCodes = keyCodes;
|
||
|
|
this.chart = chart;
|
||
|
|
}
|
||
|
|
extend(SeriesKeyboardNavigation.prototype, /** @lends Highcharts.SeriesKeyboardNavigation */ {
|
||
|
|
/**
|
||
|
|
* Init the keyboard navigation
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var keyboardNavigation = this, chart = this.chart, e = this.eventProvider = new EventProvider();
|
||
|
|
e.addEvent(H.Series, 'destroy', function () {
|
||
|
|
return keyboardNavigation.onSeriesDestroy(this);
|
||
|
|
});
|
||
|
|
e.addEvent(chart, 'afterDrilldown', function () {
|
||
|
|
updateChartFocusAfterDrilling(this);
|
||
|
|
});
|
||
|
|
e.addEvent(chart, 'drilldown', function (e) {
|
||
|
|
var point = e.point, series = point.series;
|
||
|
|
keyboardNavigation.lastDrilledDownPoint = {
|
||
|
|
x: point.x,
|
||
|
|
y: point.y,
|
||
|
|
seriesName: series ? series.name : ''
|
||
|
|
};
|
||
|
|
});
|
||
|
|
e.addEvent(chart, 'drillupall', function () {
|
||
|
|
setTimeout(function () {
|
||
|
|
keyboardNavigation.onDrillupAll();
|
||
|
|
}, 10);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
onDrillupAll: function () {
|
||
|
|
// After drillup we want to find the point that was drilled down to and
|
||
|
|
// highlight it.
|
||
|
|
var last = this.lastDrilledDownPoint, chart = this.chart, series = last && getSeriesFromName(chart, last.seriesName), point;
|
||
|
|
if (last && series && defined(last.x) && defined(last.y)) {
|
||
|
|
point = getPointFromXY(series, last.x, last.y);
|
||
|
|
}
|
||
|
|
// Container focus can be lost on drillup due to deleted elements.
|
||
|
|
if (chart.container) {
|
||
|
|
chart.container.focus();
|
||
|
|
}
|
||
|
|
if (point && point.highlight) {
|
||
|
|
point.highlight();
|
||
|
|
}
|
||
|
|
if (chart.focusElement) {
|
||
|
|
chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
*/
|
||
|
|
getKeyboardNavigationHandler: function () {
|
||
|
|
var keyboardNavigation = this, keys = this.keyCodes, chart = this.chart, inverted = chart.inverted;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[inverted ? [keys.up, keys.down] : [keys.left, keys.right],
|
||
|
|
function (keyCode) {
|
||
|
|
return keyboardNavigation.onKbdSideways(this, keyCode);
|
||
|
|
}],
|
||
|
|
[inverted ? [keys.left, keys.right] : [keys.up, keys.down],
|
||
|
|
function (keyCode) {
|
||
|
|
return keyboardNavigation.onKbdVertical(this, keyCode);
|
||
|
|
}],
|
||
|
|
[[keys.enter, keys.space],
|
||
|
|
function () {
|
||
|
|
if (chart.highlightedPoint) {
|
||
|
|
chart.highlightedPoint.firePointEvent('click');
|
||
|
|
}
|
||
|
|
return this.response.success;
|
||
|
|
}]
|
||
|
|
],
|
||
|
|
init: function (dir) {
|
||
|
|
return keyboardNavigation.onHandlerInit(this, dir);
|
||
|
|
},
|
||
|
|
terminate: function () {
|
||
|
|
return keyboardNavigation.onHandlerTerminate();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||
|
|
* @param {number} keyCode
|
||
|
|
* @return {number}
|
||
|
|
* response
|
||
|
|
*/
|
||
|
|
onKbdSideways: function (handler, keyCode) {
|
||
|
|
var keys = this.keyCodes, isNext = keyCode === keys.right || keyCode === keys.down;
|
||
|
|
return this.attemptHighlightAdjacentPoint(handler, isNext);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||
|
|
* @param {number} keyCode
|
||
|
|
* @return {number}
|
||
|
|
* response
|
||
|
|
*/
|
||
|
|
onKbdVertical: function (handler, keyCode) {
|
||
|
|
var chart = this.chart, keys = this.keyCodes, isNext = keyCode === keys.down || keyCode === keys.right, navOptions = chart.options.accessibility.keyboardNavigation
|
||
|
|
.seriesNavigation;
|
||
|
|
// Handle serialized mode, act like left/right
|
||
|
|
if (navOptions.mode && navOptions.mode === 'serialize') {
|
||
|
|
return this.attemptHighlightAdjacentPoint(handler, isNext);
|
||
|
|
}
|
||
|
|
// Normal mode, move between series
|
||
|
|
var highlightMethod = (chart.highlightedPoint &&
|
||
|
|
chart.highlightedPoint.series.keyboardMoveVertical) ?
|
||
|
|
'highlightAdjacentPointVertical' :
|
||
|
|
'highlightAdjacentSeries';
|
||
|
|
chart[highlightMethod](isNext);
|
||
|
|
return handler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||
|
|
* @param {number} initDirection
|
||
|
|
* @return {number}
|
||
|
|
* response
|
||
|
|
*/
|
||
|
|
onHandlerInit: function (handler, initDirection) {
|
||
|
|
var chart = this.chart;
|
||
|
|
if (initDirection > 0) {
|
||
|
|
highlightFirstValidPointInChart(chart);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
highlightLastValidPointInChart(chart);
|
||
|
|
}
|
||
|
|
return handler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onHandlerTerminate: function () {
|
||
|
|
var _a, _b;
|
||
|
|
var chart = this.chart;
|
||
|
|
var curPoint = chart.highlightedPoint;
|
||
|
|
(_a = chart.tooltip) === null || _a === void 0 ? void 0 : _a.hide(0);
|
||
|
|
(_b = curPoint === null || curPoint === void 0 ? void 0 : curPoint.onMouseOut) === null || _b === void 0 ? void 0 : _b.call(curPoint);
|
||
|
|
delete chart.highlightedPoint;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Function that attempts to highlight next/prev point. Handles wrap around.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} handler
|
||
|
|
* @param {boolean} directionIsNext
|
||
|
|
* @return {number}
|
||
|
|
* response
|
||
|
|
*/
|
||
|
|
attemptHighlightAdjacentPoint: function (handler, directionIsNext) {
|
||
|
|
var chart = this.chart, wrapAround = chart.options.accessibility.keyboardNavigation
|
||
|
|
.wrapAround, highlightSuccessful = chart.highlightAdjacentPoint(directionIsNext);
|
||
|
|
if (!highlightSuccessful) {
|
||
|
|
if (wrapAround) {
|
||
|
|
return handler.init(directionIsNext ? 1 : -1);
|
||
|
|
}
|
||
|
|
return handler.response[directionIsNext ? 'next' : 'prev'];
|
||
|
|
}
|
||
|
|
return handler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onSeriesDestroy: function (series) {
|
||
|
|
var chart = this.chart, currentHighlightedPointDestroyed = chart.highlightedPoint &&
|
||
|
|
chart.highlightedPoint.series === series;
|
||
|
|
if (currentHighlightedPointDestroyed) {
|
||
|
|
delete chart.highlightedPoint;
|
||
|
|
if (chart.focusElement) {
|
||
|
|
chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
this.eventProvider.removeAddedEvents();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return SeriesKeyboardNavigation;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/AnnotationsA11y.js', [_modules['parts/Utilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (U, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2019 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Annotations accessibility code.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var inArray = U.inArray;
|
||
|
|
var escapeStringForHTML = HTMLUtilities.escapeStringForHTML, stripHTMLTagsFromString = HTMLUtilities.stripHTMLTagsFromString;
|
||
|
|
/**
|
||
|
|
* Get list of all annotation labels in the chart.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart The chart to get annotation info on.
|
||
|
|
* @return {Array<object>} The labels, or empty array if none.
|
||
|
|
*/
|
||
|
|
function getChartAnnotationLabels(chart) {
|
||
|
|
var annotations = chart.annotations || [];
|
||
|
|
return annotations.reduce(function (acc, cur) {
|
||
|
|
var _a;
|
||
|
|
if (((_a = cur.options) === null || _a === void 0 ? void 0 : _a.visible) !== false) {
|
||
|
|
acc = acc.concat(cur.labels);
|
||
|
|
}
|
||
|
|
return acc;
|
||
|
|
}, []);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Get the text of an annotation label.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {object} label The annotation label object
|
||
|
|
* @return {string} The text in the label.
|
||
|
|
*/
|
||
|
|
function getLabelText(label) {
|
||
|
|
var _a, _b, _c, _d;
|
||
|
|
var a11yDesc = (_b = (_a = label.options) === null || _a === void 0 ? void 0 : _a.accessibility) === null || _b === void 0 ? void 0 : _b.description;
|
||
|
|
return a11yDesc ? a11yDesc : ((_d = (_c = label.graphic) === null || _c === void 0 ? void 0 : _c.text) === null || _d === void 0 ? void 0 : _d.textStr) || '';
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Describe an annotation label.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {object} label The annotation label object to describe
|
||
|
|
* @return {string} The description for the label.
|
||
|
|
*/
|
||
|
|
function getAnnotationLabelDescription(label) {
|
||
|
|
var _a, _b;
|
||
|
|
var a11yDesc = (_b = (_a = label.options) === null || _a === void 0 ? void 0 : _a.accessibility) === null || _b === void 0 ? void 0 : _b.description;
|
||
|
|
if (a11yDesc) {
|
||
|
|
return a11yDesc;
|
||
|
|
}
|
||
|
|
var chart = label.chart;
|
||
|
|
var labelText = getLabelText(label);
|
||
|
|
var points = label.points;
|
||
|
|
var getAriaLabel = function (point) { var _a, _b; return ((_b = (_a = point === null || point === void 0 ? void 0 : point.graphic) === null || _a === void 0 ? void 0 : _a.element) === null || _b === void 0 ? void 0 : _b.getAttribute('aria-label')) || ''; };
|
||
|
|
var getValueDesc = function (point) {
|
||
|
|
var _a;
|
||
|
|
var valDesc = ((_a = point === null || point === void 0 ? void 0 : point.accessibility) === null || _a === void 0 ? void 0 : _a.valueDescription) || getAriaLabel(point);
|
||
|
|
var seriesName = (point === null || point === void 0 ? void 0 : point.series.name) || '';
|
||
|
|
return (seriesName ? seriesName + ', ' : '') + 'data point ' + valDesc;
|
||
|
|
};
|
||
|
|
var pointValueDescriptions = points
|
||
|
|
.filter(function (p) { return !!p.graphic; }) // Filter out mock points
|
||
|
|
.map(getValueDesc)
|
||
|
|
.filter(function (desc) { return !!desc; }); // Filter out points we can't describe
|
||
|
|
var numPoints = pointValueDescriptions.length;
|
||
|
|
var pointsSelector = numPoints > 1 ? 'MultiplePoints' : numPoints ? 'SinglePoint' : 'NoPoints';
|
||
|
|
var langFormatStr = 'accessibility.screenReaderSection.annotations.description' + pointsSelector;
|
||
|
|
var context = {
|
||
|
|
annotationText: labelText,
|
||
|
|
numPoints: numPoints,
|
||
|
|
annotationPoint: pointValueDescriptions[0],
|
||
|
|
additionalAnnotationPoints: pointValueDescriptions.slice(1)
|
||
|
|
};
|
||
|
|
return chart.langFormat(langFormatStr, context);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return array of HTML strings for each annotation label in the chart.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart The chart to get annotation info on.
|
||
|
|
* @return {Array<string>} Array of strings with HTML content for each annotation label.
|
||
|
|
*/
|
||
|
|
function getAnnotationListItems(chart) {
|
||
|
|
var labels = getChartAnnotationLabels(chart);
|
||
|
|
return labels.map(function (label) {
|
||
|
|
var desc = escapeStringForHTML(stripHTMLTagsFromString(getAnnotationLabelDescription(label)));
|
||
|
|
return desc ? "<li>" + desc + "</li>" : '';
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return the annotation info for a chart as string.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart The chart to get annotation info on.
|
||
|
|
* @return {string} String with HTML content or empty string if no annotations.
|
||
|
|
*/
|
||
|
|
function getAnnotationsInfoHTML(chart) {
|
||
|
|
var annotations = chart.annotations;
|
||
|
|
if (!(annotations && annotations.length)) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
var annotationItems = getAnnotationListItems(chart);
|
||
|
|
return "<ul>" + annotationItems.join(' ') + "</ul>";
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return the texts for the annotation(s) connected to a point, or empty array
|
||
|
|
* if none.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point The data point to get the annotation info from.
|
||
|
|
* @return {Array<string>} Annotation texts
|
||
|
|
*/
|
||
|
|
function getPointAnnotationTexts(point) {
|
||
|
|
var labels = getChartAnnotationLabels(point.series.chart);
|
||
|
|
var pointLabels = labels
|
||
|
|
.filter(function (label) { return inArray(point, label.points) > -1; });
|
||
|
|
if (!pointLabels.length) {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
return pointLabels.map(function (label) { return "" + getLabelText(label); });
|
||
|
|
}
|
||
|
|
var AnnotationsA11y = {
|
||
|
|
getAnnotationsInfoHTML: getAnnotationsInfoHTML,
|
||
|
|
getAnnotationLabelDescription: getAnnotationLabelDescription,
|
||
|
|
getAnnotationListItems: getAnnotationListItems,
|
||
|
|
getPointAnnotationTexts: getPointAnnotationTexts
|
||
|
|
};
|
||
|
|
|
||
|
|
return AnnotationsA11y;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/SeriesComponent/SeriesDescriber.js', [_modules['parts/Utilities.js'], _modules['modules/accessibility/components/AnnotationsA11y.js'], _modules['modules/accessibility/utils/htmlUtilities.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['parts/Tooltip.js']], function (U, AnnotationsA11y, HTMLUtilities, ChartUtilities, Tooltip) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Place desriptions on a series and its points.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var find = U.find, format = U.format, isNumber = U.isNumber, numberFormat = U.numberFormat, pick = U.pick, defined = U.defined;
|
||
|
|
var getPointAnnotationTexts = AnnotationsA11y.getPointAnnotationTexts;
|
||
|
|
var escapeStringForHTML = HTMLUtilities.escapeStringForHTML, reverseChildNodes = HTMLUtilities.reverseChildNodes, stripHTMLTags = HTMLUtilities.stripHTMLTagsFromString;
|
||
|
|
var getAxisDescription = ChartUtilities.getAxisDescription, getSeriesFirstPointElement = ChartUtilities.getSeriesFirstPointElement, getSeriesA11yElement = ChartUtilities.getSeriesA11yElement, unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function findFirstPointWithGraphic(point) {
|
||
|
|
var sourcePointIndex = point.index;
|
||
|
|
if (!point.series || !point.series.data || !defined(sourcePointIndex)) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
return find(point.series.data, function (p) {
|
||
|
|
return !!(p &&
|
||
|
|
typeof p.index !== 'undefined' &&
|
||
|
|
p.index > sourcePointIndex &&
|
||
|
|
p.graphic &&
|
||
|
|
p.graphic.element);
|
||
|
|
}) || null;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function shouldAddDummyPoint(point) {
|
||
|
|
// Note: Sunburst series use isNull for hidden points on drilldown.
|
||
|
|
// Ignore these.
|
||
|
|
var isSunburst = point.series && point.series.is('sunburst'), isNull = point.isNull;
|
||
|
|
return isNull && !isSunburst;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function makeDummyElement(point, pos) {
|
||
|
|
var renderer = point.series.chart.renderer, dummy = renderer.rect(pos.x, pos.y, 1, 1);
|
||
|
|
dummy.attr({
|
||
|
|
'class': 'highcharts-a11y-dummy-point',
|
||
|
|
fill: 'none',
|
||
|
|
opacity: 0,
|
||
|
|
'fill-opacity': 0,
|
||
|
|
'stroke-opacity': 0
|
||
|
|
});
|
||
|
|
return dummy;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @return {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement|undefined}
|
||
|
|
*/
|
||
|
|
function addDummyPointElement(point) {
|
||
|
|
var series = point.series, firstPointWithGraphic = findFirstPointWithGraphic(point), firstGraphic = firstPointWithGraphic && firstPointWithGraphic.graphic, parentGroup = firstGraphic ?
|
||
|
|
firstGraphic.parentGroup :
|
||
|
|
series.graph || series.group, dummyPos = firstPointWithGraphic ? {
|
||
|
|
x: pick(point.plotX, firstPointWithGraphic.plotX, 0),
|
||
|
|
y: pick(point.plotY, firstPointWithGraphic.plotY, 0)
|
||
|
|
} : {
|
||
|
|
x: pick(point.plotX, 0),
|
||
|
|
y: pick(point.plotY, 0)
|
||
|
|
}, dummyElement = makeDummyElement(point, dummyPos);
|
||
|
|
if (parentGroup && parentGroup.element) {
|
||
|
|
point.graphic = dummyElement;
|
||
|
|
point.hasDummyGraphic = true;
|
||
|
|
dummyElement.add(parentGroup);
|
||
|
|
// Move to correct pos in DOM
|
||
|
|
parentGroup.element.insertBefore(dummyElement.element, firstGraphic ? firstGraphic.element : null);
|
||
|
|
return dummyElement.element;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
function hasMorePointsThanDescriptionThreshold(series) {
|
||
|
|
var chartA11yOptions = series.chart.options.accessibility, threshold = (chartA11yOptions.series.pointDescriptionEnabledThreshold);
|
||
|
|
return !!(threshold !== false &&
|
||
|
|
series.points &&
|
||
|
|
series.points.length >= threshold);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
function shouldSetScreenReaderPropsOnPoints(series) {
|
||
|
|
var seriesA11yOptions = series.options.accessibility || {};
|
||
|
|
return !hasMorePointsThanDescriptionThreshold(series) &&
|
||
|
|
!seriesA11yOptions.exposeAsGroupOnly;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
function shouldSetKeyboardNavPropsOnPoints(series) {
|
||
|
|
var chartA11yOptions = series.chart.options.accessibility, seriesNavOptions = chartA11yOptions.keyboardNavigation.seriesNavigation;
|
||
|
|
return !!(series.points && (series.points.length <
|
||
|
|
seriesNavOptions.pointNavigationEnabledThreshold ||
|
||
|
|
seriesNavOptions.pointNavigationEnabledThreshold === false));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
function shouldDescribeSeriesElement(series) {
|
||
|
|
var chart = series.chart, chartOptions = chart.options.chart || {}, chartHas3d = chartOptions.options3d && chartOptions.options3d.enabled, hasMultipleSeries = chart.series.length > 1, describeSingleSeriesOption = chart.options.accessibility.series.describeSingleSeries, exposeAsGroupOnlyOption = (series.options.accessibility || {}).exposeAsGroupOnly, noDescribe3D = chartHas3d && hasMultipleSeries;
|
||
|
|
return !noDescribe3D && (hasMultipleSeries || describeSingleSeriesOption ||
|
||
|
|
exposeAsGroupOnlyOption || hasMorePointsThanDescriptionThreshold(series));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @param {number} value
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function pointNumberToString(point, value) {
|
||
|
|
var chart = point.series.chart, a11yPointOptions = chart.options.accessibility.point || {}, tooltipOptions = point.series.tooltipOptions || {}, lang = chart.options.lang;
|
||
|
|
if (isNumber(value)) {
|
||
|
|
return numberFormat(value, a11yPointOptions.valueDecimals ||
|
||
|
|
tooltipOptions.valueDecimals ||
|
||
|
|
-1, lang.decimalPoint, lang.accessibility.thousandsSep || lang.thousandsSep);
|
||
|
|
}
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getSeriesDescriptionText(series) {
|
||
|
|
var seriesA11yOptions = series.options.accessibility || {}, descOpt = seriesA11yOptions.description;
|
||
|
|
return descOpt && series.chart.langFormat('accessibility.series.description', {
|
||
|
|
description: descOpt,
|
||
|
|
series: series
|
||
|
|
}) || '';
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.series} series
|
||
|
|
* @param {string} axisCollection
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getSeriesAxisDescriptionText(series, axisCollection) {
|
||
|
|
var axis = series[axisCollection];
|
||
|
|
return series.chart.langFormat('accessibility.series.' + axisCollection + 'Description', {
|
||
|
|
name: getAxisDescription(axis),
|
||
|
|
series: series
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Get accessible time description for a point on a datetime axis.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Point#getTimeDescription
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @return {string|undefined}
|
||
|
|
* The description as string.
|
||
|
|
*/
|
||
|
|
function getPointA11yTimeDescription(point) {
|
||
|
|
var series = point.series, chart = series.chart, a11yOptions = chart.options.accessibility.point || {}, hasDateXAxis = series.xAxis && series.xAxis.dateTime;
|
||
|
|
if (hasDateXAxis) {
|
||
|
|
var tooltipDateFormat = Tooltip.prototype.getXDateFormat.call({
|
||
|
|
getDateFormat: Tooltip.prototype.getDateFormat,
|
||
|
|
chart: chart
|
||
|
|
}, point, chart.options.tooltip, series.xAxis), dateFormat = a11yOptions.dateFormatter &&
|
||
|
|
a11yOptions.dateFormatter(point) ||
|
||
|
|
a11yOptions.dateFormat ||
|
||
|
|
tooltipDateFormat;
|
||
|
|
return chart.time.dateFormat(dateFormat, point.x, void 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getPointXDescription(point) {
|
||
|
|
var timeDesc = getPointA11yTimeDescription(point), xAxis = point.series.xAxis || {}, pointCategory = xAxis.categories && defined(point.category) &&
|
||
|
|
('' + point.category).replace('<br/>', ' '), canUseId = point.id && point.id.indexOf('highcharts-') < 0, fallback = 'x, ' + point.x;
|
||
|
|
return point.name || timeDesc || pointCategory ||
|
||
|
|
(canUseId ? point.id : fallback);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @param {string} prefix
|
||
|
|
* @param {string} suffix
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getPointArrayMapValueDescription(point, prefix, suffix) {
|
||
|
|
var pre = prefix || '', suf = suffix || '', keyToValStr = function (key) {
|
||
|
|
var num = pointNumberToString(point, pick(point[key], point.options[key]));
|
||
|
|
return key + ': ' + pre + num + suf;
|
||
|
|
}, pointArrayMap = point.series.pointArrayMap;
|
||
|
|
return pointArrayMap.reduce(function (desc, key) {
|
||
|
|
return desc + (desc.length ? ', ' : '') + keyToValStr(key);
|
||
|
|
}, '');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getPointValue(point) {
|
||
|
|
var series = point.series, a11yPointOpts = series.chart.options.accessibility.point || {}, tooltipOptions = series.tooltipOptions || {}, valuePrefix = a11yPointOpts.valuePrefix ||
|
||
|
|
tooltipOptions.valuePrefix || '', valueSuffix = a11yPointOpts.valueSuffix ||
|
||
|
|
tooltipOptions.valueSuffix || '', fallbackKey = (typeof point.value !==
|
||
|
|
'undefined' ?
|
||
|
|
'value' : 'y'), fallbackDesc = pointNumberToString(point, point[fallbackKey]);
|
||
|
|
if (point.isNull) {
|
||
|
|
return series.chart.langFormat('accessibility.series.nullPointValue', {
|
||
|
|
point: point
|
||
|
|
});
|
||
|
|
}
|
||
|
|
if (series.pointArrayMap) {
|
||
|
|
return getPointArrayMapValueDescription(point, valuePrefix, valueSuffix);
|
||
|
|
}
|
||
|
|
return valuePrefix + fallbackDesc + valueSuffix;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return the description for the annotation(s) connected to a point, or empty
|
||
|
|
* string if none.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point The data point to get the annotation info from.
|
||
|
|
* @return {string} Annotation description
|
||
|
|
*/
|
||
|
|
function getPointAnnotationDescription(point) {
|
||
|
|
var chart = point.series.chart;
|
||
|
|
var langKey = 'accessibility.series.pointAnnotationsDescription';
|
||
|
|
var annotations = getPointAnnotationTexts(point);
|
||
|
|
var context = { point: point, annotations: annotations };
|
||
|
|
return annotations.length ? chart.langFormat(langKey, context) : '';
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return string with information about point.
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function getPointValueDescription(point) {
|
||
|
|
var series = point.series, chart = series.chart, pointValueDescriptionFormat = chart.options.accessibility
|
||
|
|
.point.valueDescriptionFormat, showXDescription = pick(series.xAxis &&
|
||
|
|
series.xAxis.options.accessibility &&
|
||
|
|
series.xAxis.options.accessibility.enabled, !chart.angular), xDesc = showXDescription ? getPointXDescription(point) : '', context = {
|
||
|
|
point: point,
|
||
|
|
index: defined(point.index) ? (point.index + 1) : '',
|
||
|
|
xDescription: xDesc,
|
||
|
|
value: getPointValue(point),
|
||
|
|
separator: showXDescription ? ', ' : ''
|
||
|
|
};
|
||
|
|
return format(pointValueDescriptionFormat, context, chart);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return string with information about point.
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function defaultPointDescriptionFormatter(point) {
|
||
|
|
var series = point.series, chart = series.chart, valText = getPointValueDescription(point), description = point.options && point.options.accessibility &&
|
||
|
|
point.options.accessibility.description, userDescText = description ? ' ' + description : '', seriesNameText = chart.series.length > 1 && series.name ?
|
||
|
|
' ' + series.name + '.' : '', annotationsDesc = getPointAnnotationDescription(point), pointAnnotationsText = annotationsDesc ? ' ' + annotationsDesc : '';
|
||
|
|
point.accessibility = point.accessibility || {};
|
||
|
|
point.accessibility.valueDescription = valText;
|
||
|
|
return valText + userDescText + seriesNameText + pointAnnotationsText;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Set a11y props on a point element
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} pointElement
|
||
|
|
*/
|
||
|
|
function setPointScreenReaderAttribs(point, pointElement) {
|
||
|
|
var series = point.series, a11yPointOptions = series.chart.options.accessibility.point || {}, seriesA11yOptions = series.options.accessibility || {}, label = escapeStringForHTML(stripHTMLTags(seriesA11yOptions.pointDescriptionFormatter &&
|
||
|
|
seriesA11yOptions.pointDescriptionFormatter(point) ||
|
||
|
|
a11yPointOptions.descriptionFormatter &&
|
||
|
|
a11yPointOptions.descriptionFormatter(point) ||
|
||
|
|
defaultPointDescriptionFormatter(point)));
|
||
|
|
pointElement.setAttribute('role', 'img');
|
||
|
|
pointElement.setAttribute('aria-label', label);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Add accessible info to individual point elements of a series
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
*/
|
||
|
|
function describePointsInSeries(series) {
|
||
|
|
var setScreenReaderProps = shouldSetScreenReaderPropsOnPoints(series), setKeyboardProps = shouldSetKeyboardNavPropsOnPoints(series);
|
||
|
|
if (setScreenReaderProps || setKeyboardProps) {
|
||
|
|
series.points.forEach(function (point) {
|
||
|
|
var pointEl = point.graphic && point.graphic.element ||
|
||
|
|
shouldAddDummyPoint(point) && addDummyPointElement(point);
|
||
|
|
if (pointEl) {
|
||
|
|
// We always set tabindex, as long as we are setting props.
|
||
|
|
// When setting tabindex, also remove default outline to
|
||
|
|
// avoid ugly border on click.
|
||
|
|
pointEl.setAttribute('tabindex', '-1');
|
||
|
|
pointEl.style.outline = '0';
|
||
|
|
if (setScreenReaderProps) {
|
||
|
|
setPointScreenReaderAttribs(point, pointEl);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
pointEl.setAttribute('aria-hidden', true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return string with information about series.
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function defaultSeriesDescriptionFormatter(series) {
|
||
|
|
var chart = series.chart, chartTypes = chart.types || [], description = getSeriesDescriptionText(series), shouldDescribeAxis = function (coll) {
|
||
|
|
return chart[coll] && chart[coll].length > 1 && series[coll];
|
||
|
|
}, xAxisInfo = getSeriesAxisDescriptionText(series, 'xAxis'), yAxisInfo = getSeriesAxisDescriptionText(series, 'yAxis'), summaryContext = {
|
||
|
|
name: series.name || '',
|
||
|
|
ix: series.index + 1,
|
||
|
|
numSeries: chart.series && chart.series.length,
|
||
|
|
numPoints: series.points && series.points.length,
|
||
|
|
series: series
|
||
|
|
}, combinationSuffix = chartTypes.length > 1 ? 'Combination' : '', summary = chart.langFormat('accessibility.series.summary.' + series.type + combinationSuffix, summaryContext) || chart.langFormat('accessibility.series.summary.default' + combinationSuffix, summaryContext);
|
||
|
|
return summary + (description ? ' ' + description : '') + (shouldDescribeAxis('yAxis') ? ' ' + yAxisInfo : '') + (shouldDescribeAxis('xAxis') ? ' ' + xAxisInfo : '');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Set a11y props on a series element
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} seriesElement
|
||
|
|
*/
|
||
|
|
function describeSeriesElement(series, seriesElement) {
|
||
|
|
var seriesA11yOptions = series.options.accessibility || {}, a11yOptions = series.chart.options.accessibility, landmarkVerbosity = a11yOptions.landmarkVerbosity;
|
||
|
|
// Handle role attribute
|
||
|
|
if (seriesA11yOptions.exposeAsGroupOnly) {
|
||
|
|
seriesElement.setAttribute('role', 'img');
|
||
|
|
}
|
||
|
|
else if (landmarkVerbosity === 'all') {
|
||
|
|
seriesElement.setAttribute('role', 'region');
|
||
|
|
} /* else do not add role */
|
||
|
|
seriesElement.setAttribute('tabindex', '-1');
|
||
|
|
seriesElement.style.outline = '0'; // Don't show browser outline on click, despite tabindex
|
||
|
|
seriesElement.setAttribute('aria-label', escapeStringForHTML(stripHTMLTags(a11yOptions.series.descriptionFormatter &&
|
||
|
|
a11yOptions.series.descriptionFormatter(series) ||
|
||
|
|
defaultSeriesDescriptionFormatter(series))));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Put accessible info on series and points of a series.
|
||
|
|
* @param {Highcharts.Series} series The series to add info on.
|
||
|
|
*/
|
||
|
|
function describeSeries(series) {
|
||
|
|
var chart = series.chart, firstPointEl = getSeriesFirstPointElement(series), seriesEl = getSeriesA11yElement(series), is3d = chart.is3d && chart.is3d();
|
||
|
|
if (seriesEl) {
|
||
|
|
// For some series types the order of elements do not match the
|
||
|
|
// order of points in series. In that case we have to reverse them
|
||
|
|
// in order for AT to read them out in an understandable order.
|
||
|
|
// Due to z-index issues we can not do this for 3D charts.
|
||
|
|
if (seriesEl.lastChild === firstPointEl && !is3d) {
|
||
|
|
reverseChildNodes(seriesEl);
|
||
|
|
}
|
||
|
|
describePointsInSeries(series);
|
||
|
|
unhideChartElementFromAT(chart, seriesEl);
|
||
|
|
if (shouldDescribeSeriesElement(series)) {
|
||
|
|
describeSeriesElement(series, seriesEl);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
seriesEl.setAttribute('aria-label', '');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
var SeriesDescriber = {
|
||
|
|
describeSeries: describeSeries,
|
||
|
|
defaultPointDescriptionFormatter: defaultPointDescriptionFormatter,
|
||
|
|
defaultSeriesDescriptionFormatter: defaultSeriesDescriptionFormatter,
|
||
|
|
getPointA11yTimeDescription: getPointA11yTimeDescription,
|
||
|
|
getPointXDescription: getPointXDescription,
|
||
|
|
getPointValue: getPointValue,
|
||
|
|
getPointValueDescription: getPointValueDescription
|
||
|
|
};
|
||
|
|
|
||
|
|
return SeriesDescriber;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/utils/Announcer.js', [_modules['parts/Globals.js'], _modules['modules/accessibility/utils/DOMElementProvider.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, DOMElementProvider, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Create announcer to speak messages to screen readers and other AT.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var visuallyHideElement = HTMLUtilities.visuallyHideElement;
|
||
|
|
var Announcer = /** @class */ (function () {
|
||
|
|
function Announcer(chart, type) {
|
||
|
|
this.chart = chart;
|
||
|
|
this.domElementProvider = new DOMElementProvider();
|
||
|
|
this.announceRegion = this.addAnnounceRegion(type);
|
||
|
|
}
|
||
|
|
Announcer.prototype.destroy = function () {
|
||
|
|
this.domElementProvider.destroyCreatedElements();
|
||
|
|
};
|
||
|
|
Announcer.prototype.announce = function (message) {
|
||
|
|
var _this = this;
|
||
|
|
this.announceRegion.innerHTML = message;
|
||
|
|
// Delete contents after a little while to avoid user finding the live
|
||
|
|
// region in the DOM.
|
||
|
|
if (this.clearAnnouncementRegionTimer) {
|
||
|
|
clearTimeout(this.clearAnnouncementRegionTimer);
|
||
|
|
}
|
||
|
|
this.clearAnnouncementRegionTimer = setTimeout(function () {
|
||
|
|
_this.announceRegion.innerHTML = '';
|
||
|
|
delete _this.clearAnnouncementRegionTimer;
|
||
|
|
}, 1000);
|
||
|
|
};
|
||
|
|
Announcer.prototype.addAnnounceRegion = function (type) {
|
||
|
|
var chartContainer = this.chart.renderTo;
|
||
|
|
var div = this.domElementProvider.createElement('div');
|
||
|
|
div.setAttribute('aria-hidden', false);
|
||
|
|
div.setAttribute('aria-live', type);
|
||
|
|
visuallyHideElement(div);
|
||
|
|
chartContainer.insertBefore(div, chartContainer.firstChild);
|
||
|
|
return div;
|
||
|
|
};
|
||
|
|
return Announcer;
|
||
|
|
}());
|
||
|
|
H.Announcer = Announcer;
|
||
|
|
|
||
|
|
return Announcer;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/SeriesComponent/NewDataAnnouncer.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/components/SeriesComponent/SeriesDescriber.js'], _modules['modules/accessibility/utils/Announcer.js'], _modules['modules/accessibility/utils/EventProvider.js']], function (H, U, ChartUtilities, SeriesDescriber, Announcer, EventProvider) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Handle announcing new data for a chart.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend, defined = U.defined;
|
||
|
|
var getChartTitle = ChartUtilities.getChartTitle;
|
||
|
|
var defaultPointDescriptionFormatter = SeriesDescriber
|
||
|
|
.defaultPointDescriptionFormatter, defaultSeriesDescriptionFormatter = SeriesDescriber
|
||
|
|
.defaultSeriesDescriptionFormatter;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function chartHasAnnounceEnabled(chart) {
|
||
|
|
return !!chart.options.accessibility.announceNewData.enabled;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function findPointInDataArray(point) {
|
||
|
|
var candidates = point.series.data.filter(function (candidate) {
|
||
|
|
return point.x === candidate.x && point.y === candidate.y;
|
||
|
|
});
|
||
|
|
return candidates.length === 1 ? candidates[0] : point;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Get array of unique series from two arrays
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getUniqueSeries(arrayA, arrayB) {
|
||
|
|
var uniqueSeries = (arrayA || []).concat(arrayB || [])
|
||
|
|
.reduce(function (acc, cur) {
|
||
|
|
acc[cur.name + cur.index] = cur;
|
||
|
|
return acc;
|
||
|
|
}, {});
|
||
|
|
return Object.keys(uniqueSeries).map(function (ix) {
|
||
|
|
return uniqueSeries[ix];
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
*/
|
||
|
|
var NewDataAnnouncer = function (chart) {
|
||
|
|
this.chart = chart;
|
||
|
|
};
|
||
|
|
extend(NewDataAnnouncer.prototype, {
|
||
|
|
/**
|
||
|
|
* Initialize the new data announcer.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
var announceOptions = chart.options.accessibility.announceNewData;
|
||
|
|
var announceType = announceOptions.interruptUser ? 'assertive' : 'polite';
|
||
|
|
this.lastAnnouncementTime = 0;
|
||
|
|
this.dirty = {
|
||
|
|
allSeries: {}
|
||
|
|
};
|
||
|
|
this.eventProvider = new EventProvider();
|
||
|
|
this.announcer = new Announcer(chart, announceType);
|
||
|
|
this.addEventListeners();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove traces of announcer.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
this.eventProvider.removeAddedEvents();
|
||
|
|
this.announcer.destroy();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Add event listeners for the announcer
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addEventListeners: function () {
|
||
|
|
var announcer = this, chart = this.chart, e = this.eventProvider;
|
||
|
|
e.addEvent(chart, 'afterDrilldown', function () {
|
||
|
|
announcer.lastAnnouncementTime = 0;
|
||
|
|
});
|
||
|
|
e.addEvent(H.Series, 'updatedData', function () {
|
||
|
|
announcer.onSeriesUpdatedData(this);
|
||
|
|
});
|
||
|
|
e.addEvent(chart, 'afterAddSeries', function (e) {
|
||
|
|
announcer.onSeriesAdded(e.series);
|
||
|
|
});
|
||
|
|
e.addEvent(H.Series, 'addPoint', function (e) {
|
||
|
|
announcer.onPointAdded(e.point);
|
||
|
|
});
|
||
|
|
e.addEvent(chart, 'redraw', function () {
|
||
|
|
announcer.announceDirtyData();
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* On new data in the series, make sure we add it to the dirty list.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
*/
|
||
|
|
onSeriesUpdatedData: function (series) {
|
||
|
|
var chart = this.chart;
|
||
|
|
if (series.chart === chart && chartHasAnnounceEnabled(chart)) {
|
||
|
|
this.dirty.hasDirty = true;
|
||
|
|
this.dirty.allSeries[series.name + series.index] = series;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* On new data series added, update dirty list.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Series} series
|
||
|
|
*/
|
||
|
|
onSeriesAdded: function (series) {
|
||
|
|
if (chartHasAnnounceEnabled(this.chart)) {
|
||
|
|
this.dirty.hasDirty = true;
|
||
|
|
this.dirty.allSeries[series.name + series.index] = series;
|
||
|
|
// Add it to newSeries storage unless we already have one
|
||
|
|
this.dirty.newSeries = defined(this.dirty.newSeries) ?
|
||
|
|
void 0 : series;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* On new point added, update dirty list.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Point} point
|
||
|
|
*/
|
||
|
|
onPointAdded: function (point) {
|
||
|
|
var chart = point.series.chart;
|
||
|
|
if (this.chart === chart && chartHasAnnounceEnabled(chart)) {
|
||
|
|
// Add it to newPoint storage unless we already have one
|
||
|
|
this.dirty.newPoint = defined(this.dirty.newPoint) ?
|
||
|
|
void 0 : point;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Gather what we know and announce the data to user.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
announceDirtyData: function () {
|
||
|
|
var chart = this.chart, announcer = this;
|
||
|
|
if (chart.options.accessibility.announceNewData &&
|
||
|
|
this.dirty.hasDirty) {
|
||
|
|
var newPoint = this.dirty.newPoint;
|
||
|
|
// If we have a single new point, see if we can find it in the
|
||
|
|
// data array. Otherwise we can only pass through options to
|
||
|
|
// the description builder, and it is a bit sparse in info.
|
||
|
|
if (newPoint) {
|
||
|
|
newPoint = findPointInDataArray(newPoint);
|
||
|
|
}
|
||
|
|
this.queueAnnouncement(Object.keys(this.dirty.allSeries).map(function (ix) {
|
||
|
|
return announcer.dirty.allSeries[ix];
|
||
|
|
}), this.dirty.newSeries, newPoint);
|
||
|
|
// Reset
|
||
|
|
this.dirty = {
|
||
|
|
allSeries: {}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Announce to user that there is new data.
|
||
|
|
* @private
|
||
|
|
* @param {Array<Highcharts.Series>} dirtySeries
|
||
|
|
* Array of series with new data.
|
||
|
|
* @param {Highcharts.Series} [newSeries]
|
||
|
|
* If a single new series was added, a reference to this series.
|
||
|
|
* @param {Highcharts.Point} [newPoint]
|
||
|
|
* If a single point was added, a reference to this point.
|
||
|
|
*/
|
||
|
|
queueAnnouncement: function (dirtySeries, newSeries, newPoint) {
|
||
|
|
var _this = this;
|
||
|
|
var chart = this.chart;
|
||
|
|
var annOptions = chart.options.accessibility.announceNewData;
|
||
|
|
if (annOptions.enabled) {
|
||
|
|
var now = +new Date();
|
||
|
|
var dTime = now - this.lastAnnouncementTime;
|
||
|
|
var time = Math.max(0, annOptions.minAnnounceInterval - dTime);
|
||
|
|
// Add series from previously queued announcement.
|
||
|
|
var allSeries = getUniqueSeries(this.queuedAnnouncement && this.queuedAnnouncement.series, dirtySeries);
|
||
|
|
// Build message and announce
|
||
|
|
var message = this.buildAnnouncementMessage(allSeries, newSeries, newPoint);
|
||
|
|
if (message) {
|
||
|
|
// Is there already one queued?
|
||
|
|
if (this.queuedAnnouncement) {
|
||
|
|
clearTimeout(this.queuedAnnouncementTimer);
|
||
|
|
}
|
||
|
|
// Build the announcement
|
||
|
|
this.queuedAnnouncement = {
|
||
|
|
time: now,
|
||
|
|
message: message,
|
||
|
|
series: allSeries
|
||
|
|
};
|
||
|
|
// Queue the announcement
|
||
|
|
this.queuedAnnouncementTimer = setTimeout(function () {
|
||
|
|
if (_this && _this.announcer) {
|
||
|
|
_this.lastAnnouncementTime = +new Date();
|
||
|
|
_this.announcer.announce(_this.queuedAnnouncement.message);
|
||
|
|
delete _this.queuedAnnouncement;
|
||
|
|
delete _this.queuedAnnouncementTimer;
|
||
|
|
}
|
||
|
|
}, time);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get announcement message for new data.
|
||
|
|
* @private
|
||
|
|
* @param {Array<Highcharts.Series>} dirtySeries
|
||
|
|
* Array of series with new data.
|
||
|
|
* @param {Highcharts.Series} [newSeries]
|
||
|
|
* If a single new series was added, a reference to this series.
|
||
|
|
* @param {Highcharts.Point} [newPoint]
|
||
|
|
* If a single point was added, a reference to this point.
|
||
|
|
*
|
||
|
|
* @return {string|null}
|
||
|
|
* The announcement message to give to user.
|
||
|
|
*/
|
||
|
|
buildAnnouncementMessage: function (dirtySeries, newSeries, newPoint) {
|
||
|
|
var chart = this.chart, annOptions = chart.options.accessibility.announceNewData;
|
||
|
|
// User supplied formatter?
|
||
|
|
if (annOptions.announcementFormatter) {
|
||
|
|
var formatterRes = annOptions.announcementFormatter(dirtySeries, newSeries, newPoint);
|
||
|
|
if (formatterRes !== false) {
|
||
|
|
return formatterRes.length ? formatterRes : null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Default formatter - use lang options
|
||
|
|
var multiple = H.charts && H.charts.length > 1 ? 'Multiple' : 'Single', langKey = newSeries ? 'newSeriesAnnounce' + multiple :
|
||
|
|
newPoint ? 'newPointAnnounce' + multiple : 'newDataAnnounce', chartTitle = getChartTitle(chart);
|
||
|
|
return chart.langFormat('accessibility.announceNewData.' + langKey, {
|
||
|
|
chartTitle: chartTitle,
|
||
|
|
seriesDesc: newSeries ?
|
||
|
|
defaultSeriesDescriptionFormatter(newSeries) :
|
||
|
|
null,
|
||
|
|
pointDesc: newPoint ?
|
||
|
|
defaultPointDescriptionFormatter(newPoint) :
|
||
|
|
null,
|
||
|
|
point: newPoint,
|
||
|
|
series: newSeries
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return NewDataAnnouncer;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/SeriesComponent/forcedMarkers.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Handle forcing series markers.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var addEvent = U.addEvent, merge = U.merge;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function isWithinDescriptionThreshold(series) {
|
||
|
|
var a11yOptions = series.chart.options.accessibility;
|
||
|
|
return series.points.length <
|
||
|
|
a11yOptions.series.pointDescriptionEnabledThreshold ||
|
||
|
|
a11yOptions.series.pointDescriptionEnabledThreshold === false;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function isWithinNavigationThreshold(series) {
|
||
|
|
var navOptions = series.chart.options.accessibility
|
||
|
|
.keyboardNavigation.seriesNavigation;
|
||
|
|
return series.points.length <
|
||
|
|
navOptions.pointNavigationEnabledThreshold ||
|
||
|
|
navOptions.pointNavigationEnabledThreshold === false;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function shouldForceMarkers(series) {
|
||
|
|
var chartA11yEnabled = series.chart.options.accessibility.enabled, seriesA11yEnabled = (series.options.accessibility &&
|
||
|
|
series.options.accessibility.enabled) !== false, withinDescriptionThreshold = isWithinDescriptionThreshold(series), withinNavigationThreshold = isWithinNavigationThreshold(series);
|
||
|
|
return chartA11yEnabled && seriesA11yEnabled &&
|
||
|
|
(withinDescriptionThreshold || withinNavigationThreshold);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function unforceMarkerOptions(series) {
|
||
|
|
var resetMarkerOptions = series.resetA11yMarkerOptions;
|
||
|
|
merge(true, series.options, {
|
||
|
|
marker: {
|
||
|
|
enabled: resetMarkerOptions.enabled,
|
||
|
|
states: {
|
||
|
|
normal: {
|
||
|
|
opacity: resetMarkerOptions.states &&
|
||
|
|
resetMarkerOptions.states.normal &&
|
||
|
|
resetMarkerOptions.states.normal.opacity
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function forceZeroOpacityMarkerOptions(options) {
|
||
|
|
merge(true, options, {
|
||
|
|
marker: {
|
||
|
|
enabled: true,
|
||
|
|
states: {
|
||
|
|
normal: {
|
||
|
|
opacity: 0
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getPointMarkerOpacity(pointOptions) {
|
||
|
|
return pointOptions.marker.states &&
|
||
|
|
pointOptions.marker.states.normal &&
|
||
|
|
pointOptions.marker.states.normal.opacity || 1;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function forceDisplayPointMarker(pointOptions) {
|
||
|
|
merge(true, pointOptions.marker, {
|
||
|
|
states: {
|
||
|
|
normal: {
|
||
|
|
opacity: getPointMarkerOpacity(pointOptions)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function handleForcePointMarkers(points) {
|
||
|
|
var i = points.length;
|
||
|
|
while (i--) {
|
||
|
|
var pointOptions = points[i].options;
|
||
|
|
if (pointOptions.marker) {
|
||
|
|
if (pointOptions.marker.enabled) {
|
||
|
|
forceDisplayPointMarker(pointOptions);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
forceZeroOpacityMarkerOptions(pointOptions);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function addForceMarkersEvents() {
|
||
|
|
/**
|
||
|
|
* Keep track of forcing markers.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addEvent(H.Series, 'render', function () {
|
||
|
|
var series = this, options = series.options;
|
||
|
|
if (shouldForceMarkers(series)) {
|
||
|
|
if (options.marker && options.marker.enabled === false) {
|
||
|
|
series.a11yMarkersForced = true;
|
||
|
|
forceZeroOpacityMarkerOptions(series.options);
|
||
|
|
}
|
||
|
|
if (series._hasPointMarkers && series.points && series.points.length) {
|
||
|
|
handleForcePointMarkers(series.points);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (series.a11yMarkersForced && series.resetMarkerOptions) {
|
||
|
|
delete series.a11yMarkersForced;
|
||
|
|
unforceMarkerOptions(series);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
/**
|
||
|
|
* Keep track of options to reset markers to if no longer forced.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
addEvent(H.Series, 'afterSetOptions', function (e) {
|
||
|
|
this.resetA11yMarkerOptions = merge(e.options.marker || {}, this.userOptions.marker || {});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
return addForceMarkersEvents;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/SeriesComponent/SeriesComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/components/SeriesComponent/SeriesKeyboardNavigation.js'], _modules['modules/accessibility/components/SeriesComponent/NewDataAnnouncer.js'], _modules['modules/accessibility/components/SeriesComponent/forcedMarkers.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/components/SeriesComponent/SeriesDescriber.js'], _modules['parts/Tooltip.js']], function (H, U, AccessibilityComponent, SeriesKeyboardNavigation, NewDataAnnouncer, addForceMarkersEvents, ChartUtilities, SeriesDescriber, Tooltip) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for series and points.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend;
|
||
|
|
var hideSeriesFromAT = ChartUtilities.hideSeriesFromAT;
|
||
|
|
var describeSeries = SeriesDescriber.describeSeries;
|
||
|
|
// Expose functionality to users
|
||
|
|
H.SeriesAccessibilityDescriber = SeriesDescriber;
|
||
|
|
// Handle forcing markers
|
||
|
|
addForceMarkersEvents();
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* The SeriesComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.SeriesComponent
|
||
|
|
*/
|
||
|
|
var SeriesComponent = function () { };
|
||
|
|
SeriesComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(SeriesComponent.prototype, /** @lends Highcharts.SeriesComponent */ {
|
||
|
|
/**
|
||
|
|
* Init the component.
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
this.newDataAnnouncer = new NewDataAnnouncer(this.chart);
|
||
|
|
this.newDataAnnouncer.init();
|
||
|
|
this.keyboardNavigation = new SeriesKeyboardNavigation(this.chart, this.keyCodes);
|
||
|
|
this.keyboardNavigation.init();
|
||
|
|
this.hideTooltipFromATWhenShown();
|
||
|
|
this.hideSeriesLabelsFromATWhenShown();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
hideTooltipFromATWhenShown: function () {
|
||
|
|
var component = this;
|
||
|
|
this.addEvent(Tooltip, 'refresh', function () {
|
||
|
|
if (this.chart === component.chart &&
|
||
|
|
this.label &&
|
||
|
|
this.label.element) {
|
||
|
|
this.label.element.setAttribute('aria-hidden', true);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
hideSeriesLabelsFromATWhenShown: function () {
|
||
|
|
this.addEvent(this.chart, 'afterDrawSeriesLabels', function () {
|
||
|
|
this.series.forEach(function (series) {
|
||
|
|
if (series.labelBySeries) {
|
||
|
|
series.labelBySeries.attr('aria-hidden', true);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Called on chart render. It is necessary to do this for render in case
|
||
|
|
* markers change on zoom/pixel density.
|
||
|
|
*/
|
||
|
|
onChartRender: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
chart.series.forEach(function (series) {
|
||
|
|
var shouldDescribeSeries = (series.options.accessibility &&
|
||
|
|
series.options.accessibility.enabled) !== false &&
|
||
|
|
series.visible;
|
||
|
|
if (shouldDescribeSeries) {
|
||
|
|
describeSeries(series);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
hideSeriesFromAT(series);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for this component.
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () {
|
||
|
|
return this.keyboardNavigation.getKeyboardNavigationHandler();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove traces
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
this.newDataAnnouncer.destroy();
|
||
|
|
this.keyboardNavigation.destroy();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return SeriesComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/ZoomComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, U, AccessibilityComponent, KeyboardNavigationHandler, ChartUtilities, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for chart zoom.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend, pick = U.pick;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT;
|
||
|
|
var setElAttrs = HTMLUtilities.setElAttrs, removeElement = HTMLUtilities.removeElement;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function chartHasMapZoom(chart) {
|
||
|
|
return !!(chart.mapZoom &&
|
||
|
|
chart.mapNavButtons &&
|
||
|
|
chart.mapNavButtons.length);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Pan along axis in a direction (1 or -1), optionally with a defined
|
||
|
|
* granularity (number of steps it takes to walk across current view)
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Axis#panStep
|
||
|
|
*
|
||
|
|
* @param {number} direction
|
||
|
|
* @param {number} [granularity]
|
||
|
|
*/
|
||
|
|
H.Axis.prototype.panStep = function (direction, granularity) {
|
||
|
|
var gran = granularity || 3, extremes = this.getExtremes(), step = (extremes.max - extremes.min) / gran * direction, newMax = extremes.max + step, newMin = extremes.min + step, size = newMax - newMin;
|
||
|
|
if (direction < 0 && newMin < extremes.dataMin) {
|
||
|
|
newMin = extremes.dataMin;
|
||
|
|
newMax = newMin + size;
|
||
|
|
}
|
||
|
|
else if (direction > 0 && newMax > extremes.dataMax) {
|
||
|
|
newMax = extremes.dataMax;
|
||
|
|
newMin = newMax - size;
|
||
|
|
}
|
||
|
|
this.setExtremes(newMin, newMax);
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* The ZoomComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.ZoomComponent
|
||
|
|
*/
|
||
|
|
var ZoomComponent = function () { };
|
||
|
|
ZoomComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(ZoomComponent.prototype, /** @lends Highcharts.ZoomComponent */ {
|
||
|
|
/**
|
||
|
|
* Initialize the component
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var component = this, chart = this.chart;
|
||
|
|
[
|
||
|
|
'afterShowResetZoom', 'afterDrilldown', 'drillupall'
|
||
|
|
].forEach(function (eventType) {
|
||
|
|
component.addEvent(chart, eventType, function () {
|
||
|
|
component.updateProxyOverlays();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Called when chart is updated
|
||
|
|
*/
|
||
|
|
onChartUpdate: function () {
|
||
|
|
var chart = this.chart, component = this;
|
||
|
|
// Make map zoom buttons accessible
|
||
|
|
if (chart.mapNavButtons) {
|
||
|
|
chart.mapNavButtons.forEach(function (button, i) {
|
||
|
|
unhideChartElementFromAT(chart, button.element);
|
||
|
|
component.setMapNavButtonAttrs(button.element, 'accessibility.zoom.mapZoom' + (i ? 'Out' : 'In'));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} button
|
||
|
|
* @param {string} labelFormatKey
|
||
|
|
*/
|
||
|
|
setMapNavButtonAttrs: function (button, labelFormatKey) {
|
||
|
|
var chart = this.chart, label = chart.langFormat(labelFormatKey, { chart: chart });
|
||
|
|
setElAttrs(button, {
|
||
|
|
tabindex: -1,
|
||
|
|
role: 'button',
|
||
|
|
'aria-label': label
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Update the proxy overlays on every new render to ensure positions are
|
||
|
|
* correct.
|
||
|
|
*/
|
||
|
|
onChartRender: function () {
|
||
|
|
this.updateProxyOverlays();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Update proxy overlays, recreating the buttons.
|
||
|
|
*/
|
||
|
|
updateProxyOverlays: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
// Always start with a clean slate
|
||
|
|
removeElement(this.drillUpProxyGroup);
|
||
|
|
removeElement(this.resetZoomProxyGroup);
|
||
|
|
if (chart.resetZoomButton) {
|
||
|
|
this.recreateProxyButtonAndGroup(chart.resetZoomButton, 'resetZoomProxyButton', 'resetZoomProxyGroup', chart.langFormat('accessibility.zoom.resetZoomButton', { chart: chart }));
|
||
|
|
}
|
||
|
|
if (chart.drillUpButton) {
|
||
|
|
this.recreateProxyButtonAndGroup(chart.drillUpButton, 'drillUpProxyButton', 'drillUpProxyGroup', chart.langFormat('accessibility.drillUpButton', {
|
||
|
|
chart: chart,
|
||
|
|
buttonText: chart.getDrilldownBackText()
|
||
|
|
}));
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.SVGElement} buttonEl
|
||
|
|
* @param {string} buttonProp
|
||
|
|
* @param {string} groupProp
|
||
|
|
* @param {string} label
|
||
|
|
*/
|
||
|
|
recreateProxyButtonAndGroup: function (buttonEl, buttonProp, groupProp, label) {
|
||
|
|
removeElement(this[groupProp]);
|
||
|
|
this[groupProp] = this.addProxyGroup();
|
||
|
|
this[buttonProp] = this.createProxyButton(buttonEl, this[groupProp], { 'aria-label': label, tabindex: -1 });
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for map zoom.
|
||
|
|
* @private
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler} The module object
|
||
|
|
*/
|
||
|
|
getMapZoomNavigation: function () {
|
||
|
|
var keys = this.keyCodes, chart = this.chart, component = this;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[
|
||
|
|
[keys.up, keys.down, keys.left, keys.right],
|
||
|
|
function (keyCode) {
|
||
|
|
return component.onMapKbdArrow(this, keyCode);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
[keys.tab],
|
||
|
|
function (_keyCode, e) {
|
||
|
|
return component.onMapKbdTab(this, e);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
[keys.space, keys.enter],
|
||
|
|
function () {
|
||
|
|
return component.onMapKbdClick(this);
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
validate: function () {
|
||
|
|
return chartHasMapZoom(chart);
|
||
|
|
},
|
||
|
|
init: function (direction) {
|
||
|
|
return component.onMapNavInit(direction);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @param {number} keyCode
|
||
|
|
* @return {number} Response code
|
||
|
|
*/
|
||
|
|
onMapKbdArrow: function (keyboardNavigationHandler, keyCode) {
|
||
|
|
var keys = this.keyCodes, panAxis = (keyCode === keys.up || keyCode === keys.down) ?
|
||
|
|
'yAxis' : 'xAxis', stepDirection = (keyCode === keys.left || keyCode === keys.up) ?
|
||
|
|
-1 : 1;
|
||
|
|
this.chart[panAxis][0].panStep(stepDirection);
|
||
|
|
return keyboardNavigationHandler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @param {global.KeyboardEvent} event
|
||
|
|
* @return {number} Response code
|
||
|
|
*/
|
||
|
|
onMapKbdTab: function (keyboardNavigationHandler, event) {
|
||
|
|
var button, chart = this.chart, response = keyboardNavigationHandler.response, isBackwards = event.shiftKey, isMoveOutOfRange = isBackwards && !this.focusedMapNavButtonIx ||
|
||
|
|
!isBackwards && this.focusedMapNavButtonIx;
|
||
|
|
// Deselect old
|
||
|
|
chart.mapNavButtons[this.focusedMapNavButtonIx].setState(0);
|
||
|
|
if (isMoveOutOfRange) {
|
||
|
|
chart.mapZoom(); // Reset zoom
|
||
|
|
return response[isBackwards ? 'prev' : 'next'];
|
||
|
|
}
|
||
|
|
// Select other button
|
||
|
|
this.focusedMapNavButtonIx += isBackwards ? -1 : 1;
|
||
|
|
button = chart.mapNavButtons[this.focusedMapNavButtonIx];
|
||
|
|
chart.setFocusToElement(button.box, button.element);
|
||
|
|
button.setState(2);
|
||
|
|
return response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @return {number} Response code
|
||
|
|
*/
|
||
|
|
onMapKbdClick: function (keyboardNavigationHandler) {
|
||
|
|
this.fakeClickEvent(this.chart.mapNavButtons[this.focusedMapNavButtonIx]
|
||
|
|
.element);
|
||
|
|
return keyboardNavigationHandler.response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {number} direction
|
||
|
|
*/
|
||
|
|
onMapNavInit: function (direction) {
|
||
|
|
var chart = this.chart, zoomIn = chart.mapNavButtons[0], zoomOut = chart.mapNavButtons[1], initialButton = direction > 0 ? zoomIn : zoomOut;
|
||
|
|
chart.setFocusToElement(initialButton.box, initialButton.element);
|
||
|
|
initialButton.setState(2);
|
||
|
|
this.focusedMapNavButtonIx = direction > 0 ? 0 : 1;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handler for a simple chart button. Provide the
|
||
|
|
* button reference for the chart, and a function to call on click.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {string} buttonProp The property on chart referencing the button.
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler} The module object
|
||
|
|
*/
|
||
|
|
simpleButtonNavigation: function (buttonProp, proxyProp, onClick) {
|
||
|
|
var keys = this.keyCodes, component = this, chart = this.chart;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[
|
||
|
|
[keys.tab, keys.up, keys.down, keys.left, keys.right],
|
||
|
|
function (keyCode, e) {
|
||
|
|
var isBackwards = keyCode === keys.tab && e.shiftKey ||
|
||
|
|
keyCode === keys.left || keyCode === keys.up;
|
||
|
|
// Arrow/tab => just move
|
||
|
|
return this.response[isBackwards ? 'prev' : 'next'];
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
[keys.space, keys.enter],
|
||
|
|
function () {
|
||
|
|
var res = onClick(this, chart);
|
||
|
|
return pick(res, this.response.success);
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
validate: function () {
|
||
|
|
var hasButton = (chart[buttonProp] &&
|
||
|
|
chart[buttonProp].box &&
|
||
|
|
component[proxyProp]);
|
||
|
|
return hasButton;
|
||
|
|
},
|
||
|
|
init: function () {
|
||
|
|
chart.setFocusToElement(chart[buttonProp].box, component[proxyProp]);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handlers for this component.
|
||
|
|
* @return {Array<Highcharts.KeyboardNavigationHandler>}
|
||
|
|
* List of module objects
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () {
|
||
|
|
return [
|
||
|
|
this.simpleButtonNavigation('resetZoomButton', 'resetZoomProxyButton', function (_handler, chart) {
|
||
|
|
chart.zoomOut();
|
||
|
|
}),
|
||
|
|
this.simpleButtonNavigation('drillUpButton', 'drillUpProxyButton', function (handler, chart) {
|
||
|
|
chart.drillUp();
|
||
|
|
return handler.response.prev;
|
||
|
|
}),
|
||
|
|
this.getMapZoomNavigation()
|
||
|
|
];
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return ZoomComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/RangeSelectorComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, U, AccessibilityComponent, KeyboardNavigationHandler, ChartUtilities, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for the range selector.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var extend = U.extend;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT;
|
||
|
|
var setElAttrs = HTMLUtilities.setElAttrs;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function shouldRunInputNavigation(chart) {
|
||
|
|
var inputVisible = (chart.rangeSelector &&
|
||
|
|
chart.rangeSelector.inputGroup &&
|
||
|
|
chart.rangeSelector.inputGroup.element
|
||
|
|
.getAttribute('visibility') !== 'hidden');
|
||
|
|
return (inputVisible &&
|
||
|
|
chart.options.rangeSelector.inputEnabled !== false &&
|
||
|
|
chart.rangeSelector.minInput &&
|
||
|
|
chart.rangeSelector.maxInput);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Highlight range selector button by index.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#highlightRangeSelectorButton
|
||
|
|
*
|
||
|
|
* @param {number} ix
|
||
|
|
*
|
||
|
|
* @return {boolean}
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.highlightRangeSelectorButton = function (ix) {
|
||
|
|
var buttons = this.rangeSelector.buttons, curSelectedIx = this.highlightedRangeSelectorItemIx;
|
||
|
|
// Deselect old
|
||
|
|
if (typeof curSelectedIx !== 'undefined' && buttons[curSelectedIx]) {
|
||
|
|
buttons[curSelectedIx].setState(this.oldRangeSelectorItemState || 0);
|
||
|
|
}
|
||
|
|
// Select new
|
||
|
|
this.highlightedRangeSelectorItemIx = ix;
|
||
|
|
if (buttons[ix]) {
|
||
|
|
this.setFocusToElement(buttons[ix].box, buttons[ix].element);
|
||
|
|
this.oldRangeSelectorItemState = buttons[ix].state;
|
||
|
|
buttons[ix].setState(2);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* The RangeSelectorComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.RangeSelectorComponent
|
||
|
|
*/
|
||
|
|
var RangeSelectorComponent = function () { };
|
||
|
|
RangeSelectorComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(RangeSelectorComponent.prototype, /** @lends Highcharts.RangeSelectorComponent */ {
|
||
|
|
/**
|
||
|
|
* Called on first render/updates to the chart, including options changes.
|
||
|
|
*/
|
||
|
|
onChartUpdate: function () {
|
||
|
|
var chart = this.chart, component = this, rangeSelector = chart.rangeSelector;
|
||
|
|
if (!rangeSelector) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (rangeSelector.buttons && rangeSelector.buttons.length) {
|
||
|
|
rangeSelector.buttons.forEach(function (button) {
|
||
|
|
unhideChartElementFromAT(chart, button.element);
|
||
|
|
component.setRangeButtonAttrs(button);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// Make sure input boxes are accessible and focusable
|
||
|
|
if (rangeSelector.maxInput && rangeSelector.minInput) {
|
||
|
|
['minInput', 'maxInput'].forEach(function (key, i) {
|
||
|
|
var input = rangeSelector[key];
|
||
|
|
if (input) {
|
||
|
|
unhideChartElementFromAT(chart, input);
|
||
|
|
component.setRangeInputAttrs(input, 'accessibility.rangeSelector.' + (i ? 'max' : 'min') +
|
||
|
|
'InputLabel');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.SVGElement} button
|
||
|
|
*/
|
||
|
|
setRangeButtonAttrs: function (button) {
|
||
|
|
var chart = this.chart, label = chart.langFormat('accessibility.rangeSelector.buttonText', {
|
||
|
|
chart: chart,
|
||
|
|
buttonText: button.text && button.text.textStr
|
||
|
|
});
|
||
|
|
setElAttrs(button.element, {
|
||
|
|
tabindex: -1,
|
||
|
|
role: 'button',
|
||
|
|
'aria-label': label
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
setRangeInputAttrs: function (input, langKey) {
|
||
|
|
var chart = this.chart;
|
||
|
|
setElAttrs(input, {
|
||
|
|
tabindex: -1,
|
||
|
|
role: 'textbox',
|
||
|
|
'aria-label': chart.langFormat(langKey, { chart: chart })
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get navigation for the range selector buttons.
|
||
|
|
* @private
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler} The module object.
|
||
|
|
*/
|
||
|
|
getRangeSelectorButtonNavigation: function () {
|
||
|
|
var chart = this.chart, keys = this.keyCodes, component = this;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[
|
||
|
|
[keys.left, keys.right, keys.up, keys.down],
|
||
|
|
function (keyCode) {
|
||
|
|
return component.onButtonNavKbdArrowKey(this, keyCode);
|
||
|
|
}
|
||
|
|
],
|
||
|
|
[
|
||
|
|
[keys.enter, keys.space],
|
||
|
|
function () {
|
||
|
|
return component.onButtonNavKbdClick(this);
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
validate: function () {
|
||
|
|
var hasRangeSelector = chart.rangeSelector &&
|
||
|
|
chart.rangeSelector.buttons &&
|
||
|
|
chart.rangeSelector.buttons.length;
|
||
|
|
return hasRangeSelector;
|
||
|
|
},
|
||
|
|
init: function (direction) {
|
||
|
|
var lastButtonIx = (chart.rangeSelector.buttons.length - 1);
|
||
|
|
chart.highlightRangeSelectorButton(direction > 0 ? 0 : lastButtonIx);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @param {number} keyCode
|
||
|
|
* @return {number} Response code
|
||
|
|
*/
|
||
|
|
onButtonNavKbdArrowKey: function (keyboardNavigationHandler, keyCode) {
|
||
|
|
var response = keyboardNavigationHandler.response, keys = this.keyCodes, chart = this.chart, wrapAround = chart.options.accessibility
|
||
|
|
.keyboardNavigation.wrapAround, direction = (keyCode === keys.left || keyCode === keys.up) ? -1 : 1, didHighlight = chart.highlightRangeSelectorButton(chart.highlightedRangeSelectorItemIx + direction);
|
||
|
|
if (!didHighlight) {
|
||
|
|
if (wrapAround) {
|
||
|
|
keyboardNavigationHandler.init(direction);
|
||
|
|
return response.success;
|
||
|
|
}
|
||
|
|
return response[direction > 0 ? 'next' : 'prev'];
|
||
|
|
}
|
||
|
|
return response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onButtonNavKbdClick: function (keyboardNavigationHandler) {
|
||
|
|
var response = keyboardNavigationHandler.response, chart = this.chart, wasDisabled = chart.oldRangeSelectorItemState === 3;
|
||
|
|
if (!wasDisabled) {
|
||
|
|
this.fakeClickEvent(chart.rangeSelector.buttons[chart.highlightedRangeSelectorItemIx].element);
|
||
|
|
}
|
||
|
|
return response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get navigation for the range selector input boxes.
|
||
|
|
* @private
|
||
|
|
* @return {Highcharts.KeyboardNavigationHandler}
|
||
|
|
* The module object.
|
||
|
|
*/
|
||
|
|
getRangeSelectorInputNavigation: function () {
|
||
|
|
var chart = this.chart, keys = this.keyCodes, component = this;
|
||
|
|
return new KeyboardNavigationHandler(chart, {
|
||
|
|
keyCodeMap: [
|
||
|
|
[
|
||
|
|
[
|
||
|
|
keys.tab, keys.up, keys.down
|
||
|
|
], function (keyCode, e) {
|
||
|
|
var direction = (keyCode === keys.tab && e.shiftKey ||
|
||
|
|
keyCode === keys.up) ? -1 : 1;
|
||
|
|
return component.onInputKbdMove(this, direction);
|
||
|
|
}
|
||
|
|
]
|
||
|
|
],
|
||
|
|
validate: function () {
|
||
|
|
return shouldRunInputNavigation(chart);
|
||
|
|
},
|
||
|
|
init: function (direction) {
|
||
|
|
component.onInputNavInit(direction);
|
||
|
|
},
|
||
|
|
terminate: function () {
|
||
|
|
component.onInputNavTerminate();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.KeyboardNavigationHandler} keyboardNavigationHandler
|
||
|
|
* @param {number} direction
|
||
|
|
* @return {number} Response code
|
||
|
|
*/
|
||
|
|
onInputKbdMove: function (keyboardNavigationHandler, direction) {
|
||
|
|
var chart = this.chart, response = keyboardNavigationHandler.response, newIx = chart.highlightedInputRangeIx =
|
||
|
|
chart.highlightedInputRangeIx + direction, newIxOutOfRange = newIx > 1 || newIx < 0;
|
||
|
|
if (newIxOutOfRange) {
|
||
|
|
return response[direction > 0 ? 'next' : 'prev'];
|
||
|
|
}
|
||
|
|
chart.rangeSelector[newIx ? 'maxInput' : 'minInput'].focus();
|
||
|
|
return response.success;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {number} direction
|
||
|
|
*/
|
||
|
|
onInputNavInit: function (direction) {
|
||
|
|
var chart = this.chart, buttonIxToHighlight = direction > 0 ? 0 : 1;
|
||
|
|
chart.highlightedInputRangeIx = buttonIxToHighlight;
|
||
|
|
chart.rangeSelector[buttonIxToHighlight ? 'maxInput' : 'minInput'].focus();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
onInputNavTerminate: function () {
|
||
|
|
var rangeSel = (this.chart.rangeSelector || {});
|
||
|
|
if (rangeSel.maxInput) {
|
||
|
|
rangeSel.hideInput('max');
|
||
|
|
}
|
||
|
|
if (rangeSel.minInput) {
|
||
|
|
rangeSel.hideInput('min');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get keyboard navigation handlers for this component.
|
||
|
|
* @return {Array<Highcharts.KeyboardNavigationHandler>}
|
||
|
|
* List of module objects.
|
||
|
|
*/
|
||
|
|
getKeyboardNavigation: function () {
|
||
|
|
return [
|
||
|
|
this.getRangeSelectorButtonNavigation(),
|
||
|
|
this.getRangeSelectorInputNavigation()
|
||
|
|
];
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return RangeSelectorComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/InfoRegionsComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/utils/Announcer.js'], _modules['modules/accessibility/components/AnnotationsA11y.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js']], function (H, U, AccessibilityComponent, Announcer, AnnotationsA11y, ChartUtilities, HTMLUtilities) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for chart info region and table.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var doc = H.win.document;
|
||
|
|
var extend = U.extend, format = U.format, pick = U.pick;
|
||
|
|
var getAnnotationsInfoHTML = AnnotationsA11y.getAnnotationsInfoHTML;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT, getChartTitle = ChartUtilities.getChartTitle, getAxisDescription = ChartUtilities.getAxisDescription;
|
||
|
|
var addClass = HTMLUtilities.addClass, setElAttrs = HTMLUtilities.setElAttrs, escapeStringForHTML = HTMLUtilities.escapeStringForHTML, stripHTMLTagsFromString = HTMLUtilities.stripHTMLTagsFromString, getElement = HTMLUtilities.getElement, visuallyHideElement = HTMLUtilities.visuallyHideElement;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getTypeDescForMapChart(chart, formatContext) {
|
||
|
|
return formatContext.mapTitle ?
|
||
|
|
chart.langFormat('accessibility.chartTypes.mapTypeDescription', formatContext) :
|
||
|
|
chart.langFormat('accessibility.chartTypes.unknownMap', formatContext);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getTypeDescForCombinationChart(chart, formatContext) {
|
||
|
|
return chart.langFormat('accessibility.chartTypes.combinationChart', formatContext);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getTypeDescForEmptyChart(chart, formatContext) {
|
||
|
|
return chart.langFormat('accessibility.chartTypes.emptyChart', formatContext);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function buildTypeDescriptionFromSeries(chart, types, context) {
|
||
|
|
var firstType = types[0], typeExplaination = chart.langFormat('accessibility.seriesTypeDescriptions.' + firstType, context), multi = chart.series && chart.series.length < 2 ? 'Single' : 'Multiple';
|
||
|
|
return (chart.langFormat('accessibility.chartTypes.' + firstType + multi, context) ||
|
||
|
|
chart.langFormat('accessibility.chartTypes.default' + multi, context)) + (typeExplaination ? ' ' + typeExplaination : '');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getTableSummary(chart) {
|
||
|
|
return chart.langFormat('accessibility.table.tableSummary', { chart: chart });
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function stripEmptyHTMLTags(str) {
|
||
|
|
return str.replace(/<(\w+)[^>]*?>\s*<\/\1>/g, '');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function enableSimpleHTML(str) {
|
||
|
|
return str
|
||
|
|
.replace(/<(h[1-7]|p|div|ul|ol|li)>/g, '<$1>')
|
||
|
|
.replace(/</(h[1-7]|p|div|ul|ol|li|a|button)>/g, '</$1>')
|
||
|
|
.replace(/<(div|a|button) id="([a-zA-Z\-0-9#]*?)">/g, '<$1 id="$2">');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function stringToSimpleHTML(str) {
|
||
|
|
return stripEmptyHTMLTags(enableSimpleHTML(escapeStringForHTML(str)));
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Return simplified explaination of chart type. Some types will not be familiar
|
||
|
|
* to most users, but in those cases we try to add an explaination of the type.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#getTypeDescription
|
||
|
|
* @param {Array<string>} types The series types in this chart.
|
||
|
|
* @return {string} The text description of the chart type.
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.getTypeDescription = function (types) {
|
||
|
|
var firstType = types[0], firstSeries = this.series && this.series[0] || {}, formatContext = {
|
||
|
|
numSeries: this.series.length,
|
||
|
|
numPoints: firstSeries.points && firstSeries.points.length,
|
||
|
|
chart: this,
|
||
|
|
mapTitle: firstSeries.mapTitle
|
||
|
|
};
|
||
|
|
if (!firstType) {
|
||
|
|
return getTypeDescForEmptyChart(this, formatContext);
|
||
|
|
}
|
||
|
|
if (firstType === 'map') {
|
||
|
|
return getTypeDescForMapChart(this, formatContext);
|
||
|
|
}
|
||
|
|
if (this.types.length > 1) {
|
||
|
|
return getTypeDescForCombinationChart(this, formatContext);
|
||
|
|
}
|
||
|
|
return buildTypeDescriptionFromSeries(this, types, formatContext);
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* The InfoRegionsComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.InfoRegionsComponent
|
||
|
|
*/
|
||
|
|
var InfoRegionsComponent = function () { };
|
||
|
|
InfoRegionsComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(InfoRegionsComponent.prototype, /** @lends Highcharts.InfoRegionsComponent */ {
|
||
|
|
/**
|
||
|
|
* Init the component
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
init: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
var component = this;
|
||
|
|
this.initRegionsDefinitions();
|
||
|
|
this.addEvent(chart, 'afterGetTable', function (e) {
|
||
|
|
component.onDataTableCreated(e);
|
||
|
|
});
|
||
|
|
this.addEvent(chart, 'afterViewData', function (tableDiv) {
|
||
|
|
component.dataTableDiv = tableDiv;
|
||
|
|
// Use small delay to give browsers & AT time to register new table
|
||
|
|
setTimeout(function () {
|
||
|
|
component.focusDataTable();
|
||
|
|
}, 300);
|
||
|
|
});
|
||
|
|
this.announcer = new Announcer(chart, 'assertive');
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
initRegionsDefinitions: function () {
|
||
|
|
var component = this;
|
||
|
|
this.screenReaderSections = {
|
||
|
|
before: {
|
||
|
|
element: null,
|
||
|
|
buildContent: function (chart) {
|
||
|
|
var formatter = chart.options.accessibility
|
||
|
|
.screenReaderSection.beforeChartFormatter;
|
||
|
|
return formatter ? formatter(chart) :
|
||
|
|
component.defaultBeforeChartFormatter(chart);
|
||
|
|
},
|
||
|
|
insertIntoDOM: function (el, chart) {
|
||
|
|
chart.renderTo.insertBefore(el, chart.renderTo.firstChild);
|
||
|
|
},
|
||
|
|
afterInserted: function () {
|
||
|
|
if (typeof component.sonifyButtonId !== 'undefined') {
|
||
|
|
component.initSonifyButton(component.sonifyButtonId);
|
||
|
|
}
|
||
|
|
if (typeof component.dataTableButtonId !== 'undefined') {
|
||
|
|
component.initDataTableButton(component.dataTableButtonId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
after: {
|
||
|
|
element: null,
|
||
|
|
buildContent: function (chart) {
|
||
|
|
var formatter = chart.options.accessibility.screenReaderSection
|
||
|
|
.afterChartFormatter;
|
||
|
|
return formatter ? formatter(chart) :
|
||
|
|
component.defaultAfterChartFormatter();
|
||
|
|
},
|
||
|
|
insertIntoDOM: function (el, chart) {
|
||
|
|
chart.renderTo.insertBefore(el, chart.container.nextSibling);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Called on chart render. Have to update the sections on render, in order
|
||
|
|
* to get a11y info from series.
|
||
|
|
*/
|
||
|
|
onChartRender: function () {
|
||
|
|
var component = this;
|
||
|
|
this.linkedDescriptionElement = this.getLinkedDescriptionElement();
|
||
|
|
this.setLinkedDescriptionAttrs();
|
||
|
|
Object.keys(this.screenReaderSections).forEach(function (regionKey) {
|
||
|
|
component.updateScreenReaderSection(regionKey);
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
getLinkedDescriptionElement: function () {
|
||
|
|
var chartOptions = this.chart.options, linkedDescOption = chartOptions.accessibility.linkedDescription;
|
||
|
|
if (!linkedDescOption) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (typeof linkedDescOption !== 'string') {
|
||
|
|
return linkedDescOption;
|
||
|
|
}
|
||
|
|
var query = format(linkedDescOption, this.chart), queryMatch = doc.querySelectorAll(query);
|
||
|
|
if (queryMatch.length === 1) {
|
||
|
|
return queryMatch[0];
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
setLinkedDescriptionAttrs: function () {
|
||
|
|
var el = this.linkedDescriptionElement;
|
||
|
|
if (el) {
|
||
|
|
el.setAttribute('aria-hidden', 'true');
|
||
|
|
addClass(el, 'highcharts-linked-description');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} regionKey The name/key of the region to update
|
||
|
|
*/
|
||
|
|
updateScreenReaderSection: function (regionKey) {
|
||
|
|
var chart = this.chart, region = this.screenReaderSections[regionKey], content = region.buildContent(chart), sectionDiv = region.element = (region.element || this.createElement('div')), hiddenDiv = (sectionDiv.firstChild || this.createElement('div'));
|
||
|
|
this.setScreenReaderSectionAttribs(sectionDiv, regionKey);
|
||
|
|
hiddenDiv.innerHTML = content;
|
||
|
|
sectionDiv.appendChild(hiddenDiv);
|
||
|
|
region.insertIntoDOM(sectionDiv, chart);
|
||
|
|
visuallyHideElement(hiddenDiv);
|
||
|
|
unhideChartElementFromAT(chart, hiddenDiv);
|
||
|
|
if (region.afterInserted) {
|
||
|
|
region.afterInserted();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.HTMLDOMElement} sectionDiv The section element
|
||
|
|
* @param {string} regionKey Name/key of the region we are setting attrs for
|
||
|
|
*/
|
||
|
|
setScreenReaderSectionAttribs: function (sectionDiv, regionKey) {
|
||
|
|
var labelLangKey = ('accessibility.screenReaderSection.' + regionKey + 'RegionLabel'), chart = this.chart, labelText = chart.langFormat(labelLangKey, { chart: chart }), sectionId = 'highcharts-screen-reader-region-' + regionKey + '-' +
|
||
|
|
chart.index;
|
||
|
|
setElAttrs(sectionDiv, {
|
||
|
|
id: sectionId,
|
||
|
|
'aria-label': labelText
|
||
|
|
});
|
||
|
|
// Sections are wrapped to be positioned relatively to chart in case
|
||
|
|
// elements inside are tabbed to.
|
||
|
|
sectionDiv.style.position = 'relative';
|
||
|
|
if (chart.options.accessibility.landmarkVerbosity === 'all' &&
|
||
|
|
labelText) {
|
||
|
|
sectionDiv.setAttribute('role', 'region');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
defaultBeforeChartFormatter: function () {
|
||
|
|
var _a;
|
||
|
|
var chart = this.chart, format = chart.options.accessibility
|
||
|
|
.screenReaderSection.beforeChartFormat, axesDesc = this.getAxesDescription(), shouldHaveSonifyBtn = chart.sonify && ((_a = chart.options.sonification) === null || _a === void 0 ? void 0 : _a.enabled), sonifyButtonId = 'highcharts-a11y-sonify-data-btn-' +
|
||
|
|
chart.index, dataTableButtonId = 'hc-linkto-highcharts-data-table-' +
|
||
|
|
chart.index, annotationsList = getAnnotationsInfoHTML(chart), annotationsTitleStr = chart.langFormat('accessibility.screenReaderSection.annotations.heading', { chart: chart }), context = {
|
||
|
|
chartTitle: getChartTitle(chart),
|
||
|
|
typeDescription: this.getTypeDescriptionText(),
|
||
|
|
chartSubtitle: this.getSubtitleText(),
|
||
|
|
chartLongdesc: this.getLongdescText(),
|
||
|
|
xAxisDescription: axesDesc.xAxis,
|
||
|
|
yAxisDescription: axesDesc.yAxis,
|
||
|
|
playAsSoundButton: shouldHaveSonifyBtn ?
|
||
|
|
this.getSonifyButtonText(sonifyButtonId) : '',
|
||
|
|
viewTableButton: chart.getCSV ?
|
||
|
|
this.getDataTableButtonText(dataTableButtonId) : '',
|
||
|
|
annotationsTitle: annotationsList ? annotationsTitleStr : '',
|
||
|
|
annotationsList: annotationsList
|
||
|
|
}, formattedString = H.i18nFormat(format, context, chart);
|
||
|
|
this.dataTableButtonId = dataTableButtonId;
|
||
|
|
this.sonifyButtonId = sonifyButtonId;
|
||
|
|
return stringToSimpleHTML(formattedString);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
defaultAfterChartFormatter: function () {
|
||
|
|
var chart = this.chart, format = chart.options.accessibility
|
||
|
|
.screenReaderSection.afterChartFormat, context = {
|
||
|
|
endOfChartMarker: this.getEndOfChartMarkerText()
|
||
|
|
}, formattedString = H.i18nFormat(format, context, chart);
|
||
|
|
return stringToSimpleHTML(formattedString);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getLinkedDescription: function () {
|
||
|
|
var el = this.linkedDescriptionElement, content = el && el.innerHTML || '';
|
||
|
|
return stripHTMLTagsFromString(content);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getLongdescText: function () {
|
||
|
|
var chartOptions = this.chart.options, captionOptions = chartOptions.caption, captionText = captionOptions && captionOptions.text, linkedDescription = this.getLinkedDescription();
|
||
|
|
return (chartOptions.accessibility.description ||
|
||
|
|
linkedDescription ||
|
||
|
|
captionText ||
|
||
|
|
'');
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getTypeDescriptionText: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
return chart.types ?
|
||
|
|
chart.options.accessibility.typeDescription ||
|
||
|
|
chart.getTypeDescription(chart.types) : '';
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} buttonId
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getDataTableButtonText: function (buttonId) {
|
||
|
|
var chart = this.chart, buttonText = chart.langFormat('accessibility.table.viewAsDataTableButtonText', { chart: chart, chartTitle: getChartTitle(chart) });
|
||
|
|
return '<a id="' + buttonId + '">' + buttonText + '</a>';
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} buttonId
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getSonifyButtonText: function (buttonId) {
|
||
|
|
var _a;
|
||
|
|
var chart = this.chart;
|
||
|
|
if (((_a = chart.options.sonification) === null || _a === void 0 ? void 0 : _a.enabled) === false) {
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
var buttonText = chart.langFormat('accessibility.sonification.playAsSoundButtonText', { chart: chart, chartTitle: getChartTitle(chart) });
|
||
|
|
return '<button id="' + buttonId + '">' + buttonText + '</button>';
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getSubtitleText: function () {
|
||
|
|
var subtitle = (this.chart.options.subtitle);
|
||
|
|
return stripHTMLTagsFromString(subtitle && subtitle.text || '');
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getEndOfChartMarkerText: function () {
|
||
|
|
var chart = this.chart, markerText = chart.langFormat('accessibility.screenReaderSection.endOfChartMarker', { chart: chart }), id = 'highcharts-end-of-chart-marker-' + chart.index;
|
||
|
|
return '<div id="' + id + '">' + markerText + '</div>';
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Dictionary<string>} e
|
||
|
|
*/
|
||
|
|
onDataTableCreated: function (e) {
|
||
|
|
var chart = this.chart;
|
||
|
|
if (chart.options.accessibility.enabled) {
|
||
|
|
if (this.viewDataTableButton) {
|
||
|
|
this.viewDataTableButton.setAttribute('aria-expanded', 'true');
|
||
|
|
}
|
||
|
|
e.html = e.html.replace('<table ', '<table tabindex="0" summary="' + getTableSummary(chart) + '"');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
focusDataTable: function () {
|
||
|
|
var tableDiv = this.dataTableDiv, table = tableDiv && tableDiv.getElementsByTagName('table')[0];
|
||
|
|
if (table && table.focus) {
|
||
|
|
table.focus();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} sonifyButtonId
|
||
|
|
*/
|
||
|
|
initSonifyButton: function (sonifyButtonId) {
|
||
|
|
var _this = this;
|
||
|
|
var el = this.sonifyButton = getElement(sonifyButtonId);
|
||
|
|
var chart = this.chart;
|
||
|
|
var defaultHandler = function (e) {
|
||
|
|
el === null || el === void 0 ? void 0 : el.setAttribute('aria-hidden', 'true');
|
||
|
|
el === null || el === void 0 ? void 0 : el.setAttribute('aria-label', '');
|
||
|
|
e.preventDefault();
|
||
|
|
e.stopPropagation();
|
||
|
|
var announceMsg = chart.langFormat('accessibility.sonification.playAsSoundClickAnnouncement', { chart: chart });
|
||
|
|
_this.announcer.announce(announceMsg);
|
||
|
|
setTimeout(function () {
|
||
|
|
el === null || el === void 0 ? void 0 : el.removeAttribute('aria-hidden');
|
||
|
|
el === null || el === void 0 ? void 0 : el.removeAttribute('aria-label');
|
||
|
|
if (chart.sonify) {
|
||
|
|
chart.sonify();
|
||
|
|
}
|
||
|
|
}, 1000); // Delay to let screen reader speak the button press
|
||
|
|
};
|
||
|
|
if (el && chart) {
|
||
|
|
setElAttrs(el, {
|
||
|
|
tabindex: '-1'
|
||
|
|
});
|
||
|
|
el.onclick = function (e) {
|
||
|
|
var _a;
|
||
|
|
var onPlayAsSoundClick = (_a = chart.options.accessibility) === null || _a === void 0 ? void 0 : _a.screenReaderSection.onPlayAsSoundClick;
|
||
|
|
(onPlayAsSoundClick || defaultHandler).call(this, e, chart);
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Set attribs and handlers for default viewAsDataTable button if exists.
|
||
|
|
* @private
|
||
|
|
* @param {string} tableButtonId
|
||
|
|
*/
|
||
|
|
initDataTableButton: function (tableButtonId) {
|
||
|
|
var el = this.viewDataTableButton = getElement(tableButtonId), chart = this.chart, tableId = tableButtonId.replace('hc-linkto-', '');
|
||
|
|
if (el) {
|
||
|
|
setElAttrs(el, {
|
||
|
|
role: 'button',
|
||
|
|
tabindex: '-1',
|
||
|
|
'aria-expanded': !!getElement(tableId),
|
||
|
|
href: '#' + tableId
|
||
|
|
});
|
||
|
|
el.onclick = chart.options.accessibility
|
||
|
|
.screenReaderSection.onViewDataTableClick ||
|
||
|
|
function () {
|
||
|
|
chart.viewData();
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Return object with text description of each of the chart's axes.
|
||
|
|
* @private
|
||
|
|
* @return {Highcharts.Dictionary<string>}
|
||
|
|
*/
|
||
|
|
getAxesDescription: function () {
|
||
|
|
var chart = this.chart, shouldDescribeColl = function (collectionKey, defaultCondition) {
|
||
|
|
var axes = chart[collectionKey];
|
||
|
|
return axes.length > 1 || axes[0] &&
|
||
|
|
pick(axes[0].options.accessibility &&
|
||
|
|
axes[0].options.accessibility.enabled, defaultCondition);
|
||
|
|
}, hasNoMap = !!chart.types && chart.types.indexOf('map') < 0, hasCartesian = !!chart.hasCartesianSeries, showXAxes = shouldDescribeColl('xAxis', !chart.angular && hasCartesian && hasNoMap), showYAxes = shouldDescribeColl('yAxis', hasCartesian && hasNoMap), desc = {};
|
||
|
|
if (showXAxes) {
|
||
|
|
desc.xAxis = this.getAxisDescriptionText('xAxis');
|
||
|
|
}
|
||
|
|
if (showYAxes) {
|
||
|
|
desc.yAxis = this.getAxisDescriptionText('yAxis');
|
||
|
|
}
|
||
|
|
return desc;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {string} collectionKey
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getAxisDescriptionText: function (collectionKey) {
|
||
|
|
var component = this, chart = this.chart, axes = chart[collectionKey];
|
||
|
|
return chart.langFormat('accessibility.axis.' + collectionKey + 'Description' + (axes.length > 1 ? 'Plural' : 'Singular'), {
|
||
|
|
chart: chart,
|
||
|
|
names: axes.map(function (axis) {
|
||
|
|
return getAxisDescription(axis);
|
||
|
|
}),
|
||
|
|
ranges: axes.map(function (axis) {
|
||
|
|
return component.getAxisRangeDescription(axis);
|
||
|
|
}),
|
||
|
|
numAxes: axes.length
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Return string with text description of the axis range.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Axis} axis The axis to get range desc of.
|
||
|
|
* @return {string} A string with the range description for the axis.
|
||
|
|
*/
|
||
|
|
getAxisRangeDescription: function (axis) {
|
||
|
|
var axisOptions = axis.options || {};
|
||
|
|
// Handle overridden range description
|
||
|
|
if (axisOptions.accessibility &&
|
||
|
|
typeof axisOptions.accessibility.rangeDescription !== 'undefined') {
|
||
|
|
return axisOptions.accessibility.rangeDescription;
|
||
|
|
}
|
||
|
|
// Handle category axes
|
||
|
|
if (axis.categories) {
|
||
|
|
return this.getCategoryAxisRangeDesc(axis);
|
||
|
|
}
|
||
|
|
// Use time range, not from-to?
|
||
|
|
if (axis.dateTime && (axis.min === 0 || axis.dataMin === 0)) {
|
||
|
|
return this.getAxisTimeLengthDesc(axis);
|
||
|
|
}
|
||
|
|
// Just use from and to.
|
||
|
|
// We have the range and the unit to use, find the desc format
|
||
|
|
return this.getAxisFromToDescription(axis);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Axis} axis
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getCategoryAxisRangeDesc: function (axis) {
|
||
|
|
var chart = this.chart;
|
||
|
|
if (axis.dataMax && axis.dataMin) {
|
||
|
|
return chart.langFormat('accessibility.axis.rangeCategories', {
|
||
|
|
chart: chart,
|
||
|
|
axis: axis,
|
||
|
|
numCategories: axis.dataMax - axis.dataMin + 1
|
||
|
|
});
|
||
|
|
}
|
||
|
|
return '';
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Axis} axis
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getAxisTimeLengthDesc: function (axis) {
|
||
|
|
var chart = this.chart, range = {}, rangeUnit = 'Seconds';
|
||
|
|
range.Seconds = ((axis.max || 0) - (axis.min || 0)) / 1000;
|
||
|
|
range.Minutes = range.Seconds / 60;
|
||
|
|
range.Hours = range.Minutes / 60;
|
||
|
|
range.Days = range.Hours / 24;
|
||
|
|
['Minutes', 'Hours', 'Days'].forEach(function (unit) {
|
||
|
|
if (range[unit] > 2) {
|
||
|
|
rangeUnit = unit;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
var rangeValue = range[rangeUnit].toFixed(rangeUnit !== 'Seconds' &&
|
||
|
|
rangeUnit !== 'Minutes' ? 1 : 0 // Use decimals for days/hours
|
||
|
|
);
|
||
|
|
// We have the range and the unit to use, find the desc format
|
||
|
|
return chart.langFormat('accessibility.axis.timeRange' + rangeUnit, {
|
||
|
|
chart: chart,
|
||
|
|
axis: axis,
|
||
|
|
range: rangeValue.replace('.0', '')
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Axis} axis
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
getAxisFromToDescription: function (axis) {
|
||
|
|
var chart = this.chart, dateRangeFormat = chart.options.accessibility
|
||
|
|
.screenReaderSection.axisRangeDateFormat, format = function (axisKey) {
|
||
|
|
return axis.dateTime ? chart.time.dateFormat(dateRangeFormat, axis[axisKey]) : axis[axisKey];
|
||
|
|
};
|
||
|
|
return chart.langFormat('accessibility.axis.rangeFromTo', {
|
||
|
|
chart: chart,
|
||
|
|
axis: axis,
|
||
|
|
rangeFrom: format('min'),
|
||
|
|
rangeTo: format('max')
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Remove component traces
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
var _a;
|
||
|
|
(_a = this.announcer) === null || _a === void 0 ? void 0 : _a.destroy();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return InfoRegionsComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/components/ContainerComponent.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/utils/htmlUtilities.js'], _modules['modules/accessibility/utils/chartUtilities.js'], _modules['modules/accessibility/AccessibilityComponent.js']], function (H, U, HTMLUtilities, ChartUtilities, AccessibilityComponent) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility component for chart container.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var doc = H.win.document;
|
||
|
|
var extend = U.extend;
|
||
|
|
var stripHTMLTags = HTMLUtilities.stripHTMLTagsFromString;
|
||
|
|
var unhideChartElementFromAT = ChartUtilities.unhideChartElementFromAT, getChartTitle = ChartUtilities.getChartTitle;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* The ContainerComponent class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.ContainerComponent
|
||
|
|
*/
|
||
|
|
var ContainerComponent = function () { };
|
||
|
|
ContainerComponent.prototype = new AccessibilityComponent();
|
||
|
|
extend(ContainerComponent.prototype, /** @lends Highcharts.ContainerComponent */ {
|
||
|
|
/**
|
||
|
|
* Called on first render/updates to the chart, including options changes.
|
||
|
|
*/
|
||
|
|
onChartUpdate: function () {
|
||
|
|
this.handleSVGTitleElement();
|
||
|
|
this.setSVGContainerLabel();
|
||
|
|
this.setGraphicContainerAttrs();
|
||
|
|
this.setRenderToAttrs();
|
||
|
|
this.makeCreditsAccessible();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
handleSVGTitleElement: function () {
|
||
|
|
var chart = this.chart, titleId = 'highcharts-title-' + chart.index, titleContents = stripHTMLTags(chart.langFormat('accessibility.svgContainerTitle', {
|
||
|
|
chartTitle: getChartTitle(chart)
|
||
|
|
}));
|
||
|
|
if (titleContents.length) {
|
||
|
|
var titleElement = this.svgTitleElement =
|
||
|
|
this.svgTitleElement || doc.createElementNS('http://www.w3.org/2000/svg', 'title');
|
||
|
|
titleElement.textContent = titleContents;
|
||
|
|
titleElement.id = titleId;
|
||
|
|
chart.renderTo.insertBefore(titleElement, chart.renderTo.firstChild);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
setSVGContainerLabel: function () {
|
||
|
|
var chart = this.chart, svgContainerLabel = stripHTMLTags(chart.langFormat('accessibility.svgContainerLabel', {
|
||
|
|
chartTitle: getChartTitle(chart)
|
||
|
|
}));
|
||
|
|
if (chart.renderer.box && svgContainerLabel.length) {
|
||
|
|
chart.renderer.box.setAttribute('aria-label', svgContainerLabel);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
setGraphicContainerAttrs: function () {
|
||
|
|
var chart = this.chart, label = chart.langFormat('accessibility.graphicContainerLabel', {
|
||
|
|
chartTitle: getChartTitle(chart)
|
||
|
|
});
|
||
|
|
if (label.length) {
|
||
|
|
chart.container.setAttribute('aria-label', label);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
setRenderToAttrs: function () {
|
||
|
|
var chart = this.chart;
|
||
|
|
if (chart.options.accessibility.landmarkVerbosity !== 'disabled') {
|
||
|
|
chart.renderTo.setAttribute('role', 'region');
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
chart.renderTo.removeAttribute('role');
|
||
|
|
}
|
||
|
|
chart.renderTo.setAttribute('aria-label', chart.langFormat('accessibility.chartContainerLabel', {
|
||
|
|
title: getChartTitle(chart),
|
||
|
|
chart: chart
|
||
|
|
}));
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
makeCreditsAccessible: function () {
|
||
|
|
var chart = this.chart, credits = chart.credits;
|
||
|
|
if (credits) {
|
||
|
|
if (credits.textStr) {
|
||
|
|
credits.element.setAttribute('aria-label', stripHTMLTags(chart.langFormat('accessibility.credits', { creditsStr: credits.textStr })));
|
||
|
|
}
|
||
|
|
unhideChartElementFromAT(chart, credits.element);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Accessibility disabled/chart destroyed.
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
this.chart.renderTo.setAttribute('aria-hidden', true);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
return ContainerComponent;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/high-contrast-mode.js', [_modules['parts/Globals.js']], function (H) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Handling for Windows High Contrast Mode.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var isMS = H.isMS, win = H.win, doc = win.document;
|
||
|
|
var whcm = {
|
||
|
|
/**
|
||
|
|
* Detect WHCM in the browser.
|
||
|
|
*
|
||
|
|
* @function Highcharts#isHighContrastModeActive
|
||
|
|
* @private
|
||
|
|
* @return {boolean} Returns true if the browser is in High Contrast mode.
|
||
|
|
*/
|
||
|
|
isHighContrastModeActive: function () {
|
||
|
|
// Use media query on Edge, but not on IE
|
||
|
|
var isEdge = /(Edg)/.test(win.navigator.userAgent);
|
||
|
|
if (win.matchMedia && isEdge) {
|
||
|
|
return win.matchMedia('(-ms-high-contrast: active)').matches;
|
||
|
|
}
|
||
|
|
// Test BG image for IE
|
||
|
|
if (isMS && win.getComputedStyle) {
|
||
|
|
var testDiv = doc.createElement('div');
|
||
|
|
testDiv.style.backgroundImage = 'url(#)';
|
||
|
|
doc.body.appendChild(testDiv);
|
||
|
|
var bi = (testDiv.currentStyle ||
|
||
|
|
win.getComputedStyle(testDiv)).backgroundImage;
|
||
|
|
doc.body.removeChild(testDiv);
|
||
|
|
return bi === 'none';
|
||
|
|
}
|
||
|
|
// Not used for other browsers
|
||
|
|
return false;
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Force high contrast theme for the chart. The default theme is defined in
|
||
|
|
* a separate file.
|
||
|
|
*
|
||
|
|
* @function Highcharts#setHighContrastTheme
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.AccessibilityChart} chart The chart to set the theme of.
|
||
|
|
* @return {void}
|
||
|
|
*/
|
||
|
|
setHighContrastTheme: function (chart) {
|
||
|
|
// We might want to add additional functionality here in the future for
|
||
|
|
// storing the old state so that we can reset the theme if HC mode is
|
||
|
|
// disabled. For now, the user will have to reload the page.
|
||
|
|
chart.highContrastModeActive = true;
|
||
|
|
// Apply theme to chart
|
||
|
|
var theme = (chart.options.accessibility.highContrastTheme);
|
||
|
|
chart.update(theme, false);
|
||
|
|
// Force series colors (plotOptions is not enough)
|
||
|
|
chart.series.forEach(function (s) {
|
||
|
|
var plotOpts = theme.plotOptions[s.type] || {};
|
||
|
|
s.update({
|
||
|
|
color: plotOpts.color || 'windowText',
|
||
|
|
colors: [plotOpts.color || 'windowText'],
|
||
|
|
borderColor: plotOpts.borderColor || 'window'
|
||
|
|
});
|
||
|
|
// Force point colors if existing
|
||
|
|
s.points.forEach(function (p) {
|
||
|
|
if (p.options && p.options.color) {
|
||
|
|
p.update({
|
||
|
|
color: plotOpts.color || 'windowText',
|
||
|
|
borderColor: plotOpts.borderColor || 'window'
|
||
|
|
}, false);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
// The redraw for each series and after is required for 3D pie
|
||
|
|
// (workaround)
|
||
|
|
chart.redraw();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return whcm;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/high-contrast-theme.js', [], function () {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Default theme for Windows High Contrast Mode.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var theme = {
|
||
|
|
chart: {
|
||
|
|
backgroundColor: 'window'
|
||
|
|
},
|
||
|
|
title: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
subtitle: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
colorAxis: {
|
||
|
|
minColor: 'windowText',
|
||
|
|
maxColor: 'windowText',
|
||
|
|
stops: []
|
||
|
|
},
|
||
|
|
colors: ['windowText'],
|
||
|
|
xAxis: {
|
||
|
|
gridLineColor: 'windowText',
|
||
|
|
labels: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
lineColor: 'windowText',
|
||
|
|
minorGridLineColor: 'windowText',
|
||
|
|
tickColor: 'windowText',
|
||
|
|
title: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
yAxis: {
|
||
|
|
gridLineColor: 'windowText',
|
||
|
|
labels: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
lineColor: 'windowText',
|
||
|
|
minorGridLineColor: 'windowText',
|
||
|
|
tickColor: 'windowText',
|
||
|
|
title: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
tooltip: {
|
||
|
|
backgroundColor: 'window',
|
||
|
|
borderColor: 'windowText',
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
plotOptions: {
|
||
|
|
series: {
|
||
|
|
lineColor: 'windowText',
|
||
|
|
fillColor: 'window',
|
||
|
|
borderColor: 'windowText',
|
||
|
|
edgeColor: 'windowText',
|
||
|
|
borderWidth: 1,
|
||
|
|
dataLabels: {
|
||
|
|
connectorColor: 'windowText',
|
||
|
|
color: 'windowText',
|
||
|
|
style: {
|
||
|
|
color: 'windowText',
|
||
|
|
textOutline: 'none'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
marker: {
|
||
|
|
lineColor: 'windowText',
|
||
|
|
fillColor: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
pie: {
|
||
|
|
color: 'window',
|
||
|
|
colors: ['window'],
|
||
|
|
borderColor: 'windowText',
|
||
|
|
borderWidth: 1
|
||
|
|
},
|
||
|
|
boxplot: {
|
||
|
|
fillColor: 'window'
|
||
|
|
},
|
||
|
|
candlestick: {
|
||
|
|
lineColor: 'windowText',
|
||
|
|
fillColor: 'window'
|
||
|
|
},
|
||
|
|
errorbar: {
|
||
|
|
fillColor: 'window'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
legend: {
|
||
|
|
backgroundColor: 'window',
|
||
|
|
itemStyle: {
|
||
|
|
color: 'windowText'
|
||
|
|
},
|
||
|
|
itemHoverStyle: {
|
||
|
|
color: 'windowText'
|
||
|
|
},
|
||
|
|
itemHiddenStyle: {
|
||
|
|
color: '#555'
|
||
|
|
},
|
||
|
|
title: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
credits: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
labels: {
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
drilldown: {
|
||
|
|
activeAxisLabelStyle: {
|
||
|
|
color: 'windowText'
|
||
|
|
},
|
||
|
|
activeDataLabelStyle: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
navigation: {
|
||
|
|
buttonOptions: {
|
||
|
|
symbolStroke: 'windowText',
|
||
|
|
theme: {
|
||
|
|
fill: 'window'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
rangeSelector: {
|
||
|
|
buttonTheme: {
|
||
|
|
fill: 'window',
|
||
|
|
stroke: 'windowText',
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
},
|
||
|
|
states: {
|
||
|
|
hover: {
|
||
|
|
fill: 'window',
|
||
|
|
stroke: 'windowText',
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
select: {
|
||
|
|
fill: '#444',
|
||
|
|
stroke: 'windowText',
|
||
|
|
style: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
inputBoxBorderColor: 'windowText',
|
||
|
|
inputStyle: {
|
||
|
|
backgroundColor: 'window',
|
||
|
|
color: 'windowText'
|
||
|
|
},
|
||
|
|
labelStyle: {
|
||
|
|
color: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
navigator: {
|
||
|
|
handles: {
|
||
|
|
backgroundColor: 'window',
|
||
|
|
borderColor: 'windowText'
|
||
|
|
},
|
||
|
|
outlineColor: 'windowText',
|
||
|
|
maskFill: 'transparent',
|
||
|
|
series: {
|
||
|
|
color: 'windowText',
|
||
|
|
lineColor: 'windowText'
|
||
|
|
},
|
||
|
|
xAxis: {
|
||
|
|
gridLineColor: 'windowText'
|
||
|
|
}
|
||
|
|
},
|
||
|
|
scrollbar: {
|
||
|
|
barBackgroundColor: '#444',
|
||
|
|
barBorderColor: 'windowText',
|
||
|
|
buttonArrowColor: 'windowText',
|
||
|
|
buttonBackgroundColor: 'window',
|
||
|
|
buttonBorderColor: 'windowText',
|
||
|
|
rifleColor: 'windowText',
|
||
|
|
trackBackgroundColor: 'window',
|
||
|
|
trackBorderColor: 'windowText'
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return theme;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/options/options.js', [], function () {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Default options for accessibility.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
/**
|
||
|
|
* Formatter callback for the accessibility announcement.
|
||
|
|
*
|
||
|
|
* @callback Highcharts.AccessibilityAnnouncementFormatter
|
||
|
|
*
|
||
|
|
* @param {Array<Highcharts.Series>} updatedSeries
|
||
|
|
* Array of all series that received updates. If an announcement is already
|
||
|
|
* queued, the series that received updates for that announcement are also
|
||
|
|
* included in this array.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Series} [addedSeries]
|
||
|
|
* This is provided if {@link Highcharts.Chart#addSeries} was called, and there
|
||
|
|
* is a new series. In that case, this argument is a reference to the new
|
||
|
|
* series.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Point} [addedPoint]
|
||
|
|
* This is provided if {@link Highcharts.Series#addPoint} was called, and there
|
||
|
|
* is a new point. In that case, this argument is a reference to the new point.
|
||
|
|
*
|
||
|
|
* @return {false|string}
|
||
|
|
* The function should return a string with the text to announce to the user.
|
||
|
|
* Return empty string to not announce anything. Return `false` to use the
|
||
|
|
* default announcement format.
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* @interface Highcharts.PointAccessibilityOptionsObject
|
||
|
|
*/ /**
|
||
|
|
* Provide a description of the data point, announced to screen readers.
|
||
|
|
* @name Highcharts.PointAccessibilityOptionsObject#description
|
||
|
|
* @type {string|undefined}
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
/* *
|
||
|
|
* @interface Highcharts.PointOptionsObject in parts/Point.ts
|
||
|
|
*/ /**
|
||
|
|
* @name Highcharts.PointOptionsObject#accessibility
|
||
|
|
* @type {Highcharts.PointAccessibilityOptionsObject|undefined}
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* @callback Highcharts.ScreenReaderClickCallbackFunction
|
||
|
|
*
|
||
|
|
* @param {global.MouseEvent} evt
|
||
|
|
* Mouse click event
|
||
|
|
*
|
||
|
|
* @return {void}
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Creates a formatted string for the screen reader module.
|
||
|
|
*
|
||
|
|
* @callback Highcharts.ScreenReaderFormatterCallbackFunction<T>
|
||
|
|
*
|
||
|
|
* @param {T} context
|
||
|
|
* Context to format
|
||
|
|
*
|
||
|
|
* @return {string}
|
||
|
|
* Formatted string for the screen reader module.
|
||
|
|
*/
|
||
|
|
var options = {
|
||
|
|
/**
|
||
|
|
* Options for configuring accessibility for the chart. Requires the
|
||
|
|
* [accessibility module](https://code.highcharts.com/modules/accessibility.js)
|
||
|
|
* to be loaded. For a description of the module and information
|
||
|
|
* on its features, see
|
||
|
|
* [Highcharts Accessibility](https://www.highcharts.com/docs/chart-concepts/accessibility).
|
||
|
|
*
|
||
|
|
* @since 5.0.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @optionparent accessibility
|
||
|
|
*/
|
||
|
|
accessibility: {
|
||
|
|
/**
|
||
|
|
* Enable accessibility functionality for the chart.
|
||
|
|
*
|
||
|
|
* @since 5.0.0
|
||
|
|
*/
|
||
|
|
enabled: true,
|
||
|
|
/**
|
||
|
|
* Accessibility options for the screen reader information sections
|
||
|
|
* added before and after the chart.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
screenReaderSection: {
|
||
|
|
/**
|
||
|
|
* Function to run upon clicking the "View as Data Table" link in
|
||
|
|
* the screen reader region.
|
||
|
|
*
|
||
|
|
* By default Highcharts will insert and set focus to a data table
|
||
|
|
* representation of the chart.
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderClickCallbackFunction}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.screenReaderSection.onViewDataTableClick
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Function to run upon clicking the "Play as sound" button in
|
||
|
|
* the screen reader region.
|
||
|
|
*
|
||
|
|
* By default Highcharts will call the `chart.sonify` function.
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderClickCallbackFunction}
|
||
|
|
* @since 8.0.1
|
||
|
|
* @apioption accessibility.screenReaderSection.onPlayAsSoundClick
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* A formatter function to create the HTML contents of the hidden
|
||
|
|
* screen reader information region before the chart. Receives one
|
||
|
|
* argument, `chart`, referring to the chart object. Should return a
|
||
|
|
* string with the HTML content of the region. By default this
|
||
|
|
* returns an automatic description of the chart based on
|
||
|
|
* [beforeChartFormat](#accessibility.screenReaderSection.beforeChartFormat).
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Chart>}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.screenReaderSection.beforeChartFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Format for the screen reader information region before the chart.
|
||
|
|
* Supported HTML tags are `<h1-7>`, `<p>`, `<div>`, `<a>`, `<ul>`,
|
||
|
|
* `<ol>`, `<li>`, and `<button>`. Attributes are not supported,
|
||
|
|
* except for id on `<div>`, `<a>`, and `<button>`. Id is required
|
||
|
|
* on `<a>` and `<button>` in the format `<tag id="abcd">`. Numbers,
|
||
|
|
* lower- and uppercase letters, "-" and "#" are valid characters in
|
||
|
|
* IDs.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
beforeChartFormat: '<h5>{chartTitle}</h5>' +
|
||
|
|
'<div>{typeDescription}</div>' +
|
||
|
|
'<div>{chartSubtitle}</div>' +
|
||
|
|
'<div>{chartLongdesc}</div>' +
|
||
|
|
'<div>{playAsSoundButton}</div>' +
|
||
|
|
'<div>{viewTableButton}</div>' +
|
||
|
|
'<div>{xAxisDescription}</div>' +
|
||
|
|
'<div>{yAxisDescription}</div>' +
|
||
|
|
'<div>{annotationsTitle}{annotationsList}</div>',
|
||
|
|
/**
|
||
|
|
* A formatter function to create the HTML contents of the hidden
|
||
|
|
* screen reader information region after the chart. Analogous to
|
||
|
|
* [beforeChartFormatter](#accessibility.screenReaderSection.beforeChartFormatter).
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Chart>}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.screenReaderSection.afterChartFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Format for the screen reader information region after the chart.
|
||
|
|
* Analogous to [beforeChartFormat](#accessibility.screenReaderSection.beforeChartFormat).
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
afterChartFormat: '{endOfChartMarker}',
|
||
|
|
/**
|
||
|
|
* Date format to use to describe range of datetime axes.
|
||
|
|
*
|
||
|
|
* For an overview of the replacement codes, see
|
||
|
|
* [dateFormat](/class-reference/Highcharts#dateFormat).
|
||
|
|
*
|
||
|
|
* @see [point.dateFormat](#accessibility.point.dateFormat)
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
axisRangeDateFormat: '%Y-%m-%d %H:%M:%S'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Accessibility options global to all data series. Individual series
|
||
|
|
* can also have specific [accessibility options](#plotOptions.series.accessibility)
|
||
|
|
* set.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
series: {
|
||
|
|
/**
|
||
|
|
* Formatter function to use instead of the default for series
|
||
|
|
* descriptions. Receives one argument, `series`, referring to the
|
||
|
|
* series to describe. Should return a string with the description
|
||
|
|
* of the series for a screen reader user. If `false` is returned,
|
||
|
|
* the default formatter will be used for that series.
|
||
|
|
*
|
||
|
|
* @see [series.description](#plotOptions.series.description)
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Series>}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.series.descriptionFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Whether or not to add series descriptions to charts with a single
|
||
|
|
* series.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
describeSingleSeries: false,
|
||
|
|
/**
|
||
|
|
* When a series contains more points than this, we no longer expose
|
||
|
|
* information about individual points to screen readers.
|
||
|
|
*
|
||
|
|
* Set to `false` to disable.
|
||
|
|
*
|
||
|
|
* @type {boolean|number}
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
pointDescriptionEnabledThreshold: 200
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Options for descriptions of individual data points.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
point: {
|
||
|
|
/**
|
||
|
|
* Date format to use for points on datetime axes when describing
|
||
|
|
* them to screen reader users.
|
||
|
|
*
|
||
|
|
* Defaults to the same format as in tooltip.
|
||
|
|
*
|
||
|
|
* For an overview of the replacement codes, see
|
||
|
|
* [dateFormat](/class-reference/Highcharts#dateFormat).
|
||
|
|
*
|
||
|
|
* @see [dateFormatter](#accessibility.point.dateFormatter)
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.dateFormat
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Formatter function to determine the date/time format used with
|
||
|
|
* points on datetime axes when describing them to screen reader
|
||
|
|
* users. Receives one argument, `point`, referring to the point
|
||
|
|
* to describe. Should return a date format string compatible with
|
||
|
|
* [dateFormat](/class-reference/Highcharts#dateFormat).
|
||
|
|
*
|
||
|
|
* @see [dateFormat](#accessibility.point.dateFormat)
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Point>}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.dateFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Prefix to add to the values in the point descriptions. Uses
|
||
|
|
* [tooltip.valuePrefix](#tooltip.valuePrefix) if not defined.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.valuePrefix
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Suffix to add to the values in the point descriptions. Uses
|
||
|
|
* [tooltip.valueSuffix](#tooltip.valueSuffix) if not defined.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.valueSuffix
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Decimals to use for the values in the point descriptions. Uses
|
||
|
|
* [tooltip.valueDecimals](#tooltip.valueDecimals) if not defined.
|
||
|
|
*
|
||
|
|
* @type {number}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.valueDecimals
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Formatter function to use instead of the default for point
|
||
|
|
* descriptions.
|
||
|
|
*
|
||
|
|
* Receives one argument, `point`, referring to the point to
|
||
|
|
* describe. Should return a string with the description of the
|
||
|
|
* point for a screen reader user. If `false` is returned, the
|
||
|
|
* default formatter will be used for that point.
|
||
|
|
*
|
||
|
|
* Note: Prefer using [accessibility.point.valueDescriptionFormat](#accessibility.point.valueDescriptionFormat)
|
||
|
|
* instead if possible, as default functionality such as describing
|
||
|
|
* annotations will be preserved.
|
||
|
|
*
|
||
|
|
* @see [accessibility.point.valueDescriptionFormat](#accessibility.point.valueDescriptionFormat)
|
||
|
|
* @see [point.accessibility.description](#series.line.data.accessibility.description)
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Point>}
|
||
|
|
* @since 8.0.0
|
||
|
|
* @apioption accessibility.point.descriptionFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Format to use for describing the values of data points
|
||
|
|
* to assistive technology - including screen readers.
|
||
|
|
* The point context is available as `{point}`.
|
||
|
|
*
|
||
|
|
* Additionally, the series name, annotation info, and
|
||
|
|
* description added in `point.accessibility.description`
|
||
|
|
* is added by default if relevant. To override this, use the
|
||
|
|
* [accessibility.point.descriptionFormatter](#accessibility.point.descriptionFormatter)
|
||
|
|
* option.
|
||
|
|
*
|
||
|
|
* @see [point.accessibility.description](#series.line.data.accessibility.description)
|
||
|
|
* @see [accessibility.point.descriptionFormatter](#accessibility.point.descriptionFormatter)
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 8.0.1
|
||
|
|
*/
|
||
|
|
valueDescriptionFormat: '{index}. {xDescription}{separator}{value}.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Amount of landmarks/regions to create for screen reader users. More
|
||
|
|
* landmarks can make navigation with screen readers easier, but can
|
||
|
|
* be distracting if there are lots of charts on the page. Three modes
|
||
|
|
* are available:
|
||
|
|
* - `all`: Adds regions for all series, legend, menu, information
|
||
|
|
* region.
|
||
|
|
* - `one`: Adds a single landmark per chart.
|
||
|
|
* - `disabled`: No landmarks are added.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
* @validvalue ["all", "one", "disabled"]
|
||
|
|
*/
|
||
|
|
landmarkVerbosity: 'all',
|
||
|
|
/**
|
||
|
|
* Link the chart to an HTML element describing the contents of the
|
||
|
|
* chart.
|
||
|
|
*
|
||
|
|
* It is always recommended to describe charts using visible text, to
|
||
|
|
* improve SEO as well as accessibility for users with disabilities.
|
||
|
|
* This option lets an HTML element with a description be linked to the
|
||
|
|
* chart, so that screen reader users can connect the two.
|
||
|
|
*
|
||
|
|
* By setting this option to a string, Highcharts runs the string as an
|
||
|
|
* HTML selector query on the entire document. If there is only a single
|
||
|
|
* match, this element is linked to the chart. The content of the linked
|
||
|
|
* element will be included in the chart description for screen reader
|
||
|
|
* users.
|
||
|
|
*
|
||
|
|
* By default, the chart looks for an adjacent sibling element with the
|
||
|
|
* `highcharts-description` class.
|
||
|
|
*
|
||
|
|
* The feature can be disabled by setting the option to an empty string,
|
||
|
|
* or overridden by providing the
|
||
|
|
* [accessibility.description](#accessibility.description) option.
|
||
|
|
* Alternatively, the HTML element to link can be passed in directly as
|
||
|
|
* an HTML node.
|
||
|
|
*
|
||
|
|
* If you need the description to be part of the exported image,
|
||
|
|
* consider using the [caption](#caption) feature.
|
||
|
|
*
|
||
|
|
* If you need the description to be hidden visually, use the
|
||
|
|
* [accessibility.description](#accessibility.description) option.
|
||
|
|
*
|
||
|
|
* @see [caption](#caption)
|
||
|
|
* @see [description](#accessibility.description)
|
||
|
|
* @see [typeDescription](#accessibility.typeDescription)
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/accessible-line
|
||
|
|
* Accessible line chart
|
||
|
|
*
|
||
|
|
* @type {string|Highcharts.HTMLDOMElement}
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
linkedDescription: '*[data-highcharts-chart="{index}"] + .highcharts-description',
|
||
|
|
/**
|
||
|
|
* A hook for adding custom components to the accessibility module.
|
||
|
|
* Should be an object mapping component names to instances of classes
|
||
|
|
* inheriting from the Highcharts.AccessibilityComponent base class.
|
||
|
|
* Remember to add the component to the
|
||
|
|
* [keyboardNavigation.order](#accessibility.keyboardNavigation.order)
|
||
|
|
* for the keyboard navigation to be usable.
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/custom-component
|
||
|
|
* Custom accessibility component
|
||
|
|
*
|
||
|
|
* @type {*}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption accessibility.customComponents
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Theme to apply to the chart when Windows High Contrast Mode is
|
||
|
|
* detected. By default, a high contrast theme matching the high
|
||
|
|
* contrast system system colors is used.
|
||
|
|
*
|
||
|
|
* @type {*}
|
||
|
|
* @since 7.1.3
|
||
|
|
* @apioption accessibility.highContrastTheme
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* A text description of the chart.
|
||
|
|
*
|
||
|
|
* **Note: Prefer using [linkedDescription](#accessibility.linkedDescription)
|
||
|
|
* or [caption](#caption.text) instead.**
|
||
|
|
*
|
||
|
|
* If the Accessibility module is loaded, this option is included by
|
||
|
|
* default as a long description of the chart in the hidden screen
|
||
|
|
* reader information region.
|
||
|
|
*
|
||
|
|
* Note: Since Highcharts now supports captions and linked descriptions,
|
||
|
|
* it is preferred to define the description using those methods, as a
|
||
|
|
* visible caption/description benefits all users. If the
|
||
|
|
* `accessibility.description` option is defined, the linked description
|
||
|
|
* is ignored, and the caption is hidden from screen reader users.
|
||
|
|
*
|
||
|
|
* @see [linkedDescription](#accessibility.linkedDescription)
|
||
|
|
* @see [caption](#caption)
|
||
|
|
* @see [typeDescription](#accessibility.typeDescription)
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 5.0.0
|
||
|
|
* @apioption accessibility.description
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* A text description of the chart type.
|
||
|
|
*
|
||
|
|
* If the Accessibility module is loaded, this will be included in the
|
||
|
|
* description of the chart in the screen reader information region.
|
||
|
|
*
|
||
|
|
* Highcharts will by default attempt to guess the chart type, but for
|
||
|
|
* more complex charts it is recommended to specify this property for
|
||
|
|
* clarity.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 5.0.0
|
||
|
|
* @apioption accessibility.typeDescription
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Options for keyboard navigation.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.KeyboardNavigationOptionsObject
|
||
|
|
* @since 5.0.0
|
||
|
|
*/
|
||
|
|
keyboardNavigation: {
|
||
|
|
/**
|
||
|
|
* Enable keyboard navigation for the chart.
|
||
|
|
*
|
||
|
|
* @since 5.0.0
|
||
|
|
*/
|
||
|
|
enabled: true,
|
||
|
|
/**
|
||
|
|
* Options for the focus border drawn around elements while
|
||
|
|
* navigating through them.
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/custom-focus
|
||
|
|
* Custom focus ring
|
||
|
|
*
|
||
|
|
* @declare Highcharts.KeyboardNavigationFocusBorderOptionsObject
|
||
|
|
* @since 6.0.3
|
||
|
|
*/
|
||
|
|
focusBorder: {
|
||
|
|
/**
|
||
|
|
* Enable/disable focus border for chart.
|
||
|
|
*
|
||
|
|
* @since 6.0.3
|
||
|
|
*/
|
||
|
|
enabled: true,
|
||
|
|
/**
|
||
|
|
* Hide the browser's default focus indicator.
|
||
|
|
*
|
||
|
|
* @since 6.0.4
|
||
|
|
*/
|
||
|
|
hideBrowserFocusOutline: true,
|
||
|
|
/**
|
||
|
|
* Style options for the focus border drawn around elements
|
||
|
|
* while navigating through them. Note that some browsers in
|
||
|
|
* addition draw their own borders for focused elements. These
|
||
|
|
* automatic borders can not be styled by Highcharts.
|
||
|
|
*
|
||
|
|
* In styled mode, the border is given the
|
||
|
|
* `.highcharts-focus-border` class.
|
||
|
|
*
|
||
|
|
* @type {Highcharts.CSSObject}
|
||
|
|
* @since 6.0.3
|
||
|
|
*/
|
||
|
|
style: {
|
||
|
|
/** @internal */
|
||
|
|
color: '#335cad',
|
||
|
|
/** @internal */
|
||
|
|
lineWidth: 2,
|
||
|
|
/** @internal */
|
||
|
|
borderRadius: 3
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Focus border margin around the elements.
|
||
|
|
*
|
||
|
|
* @since 6.0.3
|
||
|
|
*/
|
||
|
|
margin: 2
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Order of tab navigation in the chart. Determines which elements
|
||
|
|
* are tabbed to first. Available elements are: `series`, `zoom`,
|
||
|
|
* `rangeSelector`, `chartMenu`, `legend`. In addition, any custom
|
||
|
|
* components can be added here.
|
||
|
|
*
|
||
|
|
* @type {Array<string>}
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
order: ['series', 'zoom', 'rangeSelector', 'legend', 'chartMenu'],
|
||
|
|
/**
|
||
|
|
* Whether or not to wrap around when reaching the end of arrow-key
|
||
|
|
* navigation for an element in the chart.
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
wrapAround: true,
|
||
|
|
/**
|
||
|
|
* Options for the keyboard navigation of data points and series.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.KeyboardNavigationSeriesNavigationOptionsObject
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
seriesNavigation: {
|
||
|
|
/**
|
||
|
|
* Set the keyboard navigation mode for the chart. Can be
|
||
|
|
* "normal" or "serialize". In normal mode, left/right arrow
|
||
|
|
* keys move between points in a series, while up/down arrow
|
||
|
|
* keys move between series. Up/down navigation acts
|
||
|
|
* intelligently to figure out which series makes sense to move
|
||
|
|
* to from any given point.
|
||
|
|
*
|
||
|
|
* In "serialize" mode, points are instead navigated as a single
|
||
|
|
* list. Left/right behaves as in "normal" mode. Up/down arrow
|
||
|
|
* keys will behave like left/right. This can be useful for
|
||
|
|
* unifying navigation behavior with/without screen readers
|
||
|
|
* enabled.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @default normal
|
||
|
|
* @since 8.0.0
|
||
|
|
* @validvalue ["normal", "serialize"]
|
||
|
|
* @apioption accessibility.keyboardNavigation.seriesNavigation.mode
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Skip null points when navigating through points with the
|
||
|
|
* keyboard.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
skipNullPoints: true,
|
||
|
|
/**
|
||
|
|
* When a series contains more points than this, we no longer
|
||
|
|
* allow keyboard navigation for it.
|
||
|
|
*
|
||
|
|
* Set to `false` to disable.
|
||
|
|
*
|
||
|
|
* @type {boolean|number}
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
pointNavigationEnabledThreshold: false
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Options for announcing new data to screen reader users. Useful
|
||
|
|
* for dynamic data applications and drilldown.
|
||
|
|
*
|
||
|
|
* Keep in mind that frequent announcements will not be useful to
|
||
|
|
* users, as they won't have time to explore the new data. For these
|
||
|
|
* applications, consider making snapshots of the data accessible, and
|
||
|
|
* do the announcements in batches.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.AccessibilityAnnounceNewDataOptionsObject
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
announceNewData: {
|
||
|
|
/**
|
||
|
|
* Optional formatter callback for the announcement. Receives
|
||
|
|
* up to three arguments. The first argument is always an array
|
||
|
|
* of all series that received updates. If an announcement is
|
||
|
|
* already queued, the series that received updates for that
|
||
|
|
* announcement are also included in this array. The second
|
||
|
|
* argument is provided if `chart.addSeries` was called, and
|
||
|
|
* there is a new series. In that case, this argument is a
|
||
|
|
* reference to the new series. The third argument, similarly,
|
||
|
|
* is provided if `series.addPoint` was called, and there is a
|
||
|
|
* new point. In that case, this argument is a reference to the
|
||
|
|
* new point.
|
||
|
|
*
|
||
|
|
* The function should return a string with the text to announce
|
||
|
|
* to the user. Return empty string to not announce anything.
|
||
|
|
* Return `false` to use the default announcement format.
|
||
|
|
*
|
||
|
|
* @sample highcharts/accessibility/custom-dynamic
|
||
|
|
* High priority live alerts
|
||
|
|
*
|
||
|
|
* @type {Highcharts.AccessibilityAnnouncementFormatter}
|
||
|
|
* @apioption accessibility.announceNewData.announcementFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Enable announcing new data to screen reader users
|
||
|
|
* @sample highcharts/accessibility/accessible-dynamic
|
||
|
|
* Dynamic data accessible
|
||
|
|
*/
|
||
|
|
enabled: false,
|
||
|
|
/**
|
||
|
|
* Minimum interval between announcements in milliseconds. If
|
||
|
|
* new data arrives before this amount of time has passed, it is
|
||
|
|
* queued for announcement. If another new data event happens
|
||
|
|
* while an announcement is queued, the queued announcement is
|
||
|
|
* dropped, and the latest announcement is queued instead. Set
|
||
|
|
* to 0 to allow all announcements, but be warned that frequent
|
||
|
|
* announcements are disturbing to users.
|
||
|
|
*/
|
||
|
|
minAnnounceInterval: 5000,
|
||
|
|
/**
|
||
|
|
* Choose whether or not the announcements should interrupt the
|
||
|
|
* screen reader. If not enabled, the user will be notified once
|
||
|
|
* idle. It is recommended not to enable this setting unless
|
||
|
|
* there is a specific reason to do so.
|
||
|
|
*/
|
||
|
|
interruptUser: false
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Accessibility options for a data point.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.PointAccessibilityOptionsObject
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption series.line.data.accessibility
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Provide a description of the data point, announced to screen readers.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption series.line.data.accessibility.description
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Accessibility options for a series.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.SeriesAccessibilityOptionsObject
|
||
|
|
* @since 7.1.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @apioption plotOptions.series.accessibility
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Enable/disable accessibility functionality for a specific series.
|
||
|
|
*
|
||
|
|
* @type {boolean}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.enabled
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Provide a description of the series, announced to screen readers.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.description
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Formatter function to use instead of the default for point
|
||
|
|
* descriptions. Same as `accessibility.point.descriptionFormatter`, but for
|
||
|
|
* a single series.
|
||
|
|
*
|
||
|
|
* @see [accessibility.point.descriptionFormatter](#accessibility.point.descriptionFormatter)
|
||
|
|
*
|
||
|
|
* @type {Highcharts.ScreenReaderFormatterCallbackFunction<Highcharts.Point>}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.pointDescriptionFormatter
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Expose only the series element to screen readers, not its points.
|
||
|
|
*
|
||
|
|
* @type {boolean}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.exposeAsGroupOnly
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Keyboard navigation for a series
|
||
|
|
*
|
||
|
|
* @declare Highcharts.SeriesAccessibilityKeyboardNavigationOptionsObject
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.keyboardNavigation
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Enable/disable keyboard navigation support for a specific series.
|
||
|
|
*
|
||
|
|
* @type {boolean}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption plotOptions.series.accessibility.keyboardNavigation.enabled
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Accessibility options for an annotation label.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.AnnotationLabelAccessibilityOptionsObject
|
||
|
|
* @since 8.0.1
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @apioption annotations.labelOptions.accessibility
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Description of an annotation label for screen readers and other assistive
|
||
|
|
* technology.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 8.0.1
|
||
|
|
* @apioption annotations.labelOptions.accessibility.description
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Accessibility options for an axis. Requires the accessibility module.
|
||
|
|
*
|
||
|
|
* @declare Highcharts.AxisAccessibilityOptionsObject
|
||
|
|
* @since 7.1.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
* @apioption xAxis.accessibility
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Enable axis accessibility features, including axis information in the
|
||
|
|
* screen reader information region. If this is disabled on the xAxis, the
|
||
|
|
* x values are not exposed to screen readers for the individual data points
|
||
|
|
* by default.
|
||
|
|
*
|
||
|
|
* @type {boolean}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption xAxis.accessibility.enabled
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Description for an axis to expose to screen reader users.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption xAxis.accessibility.description
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* Range description for an axis. Overrides the default range description.
|
||
|
|
* Set to empty to disable range description for this axis.
|
||
|
|
*
|
||
|
|
* @type {string}
|
||
|
|
* @since 7.1.0
|
||
|
|
* @apioption xAxis.accessibility.rangeDescription
|
||
|
|
*/
|
||
|
|
/**
|
||
|
|
* @optionparent legend
|
||
|
|
*/
|
||
|
|
legend: {
|
||
|
|
/**
|
||
|
|
* Accessibility options for the legend. Requires the Accessibility
|
||
|
|
* module.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
*/
|
||
|
|
accessibility: {
|
||
|
|
/**
|
||
|
|
* Enable accessibility support for the legend.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
enabled: true,
|
||
|
|
/**
|
||
|
|
* Options for keyboard navigation for the legend.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
*/
|
||
|
|
keyboardNavigation: {
|
||
|
|
/**
|
||
|
|
* Enable keyboard navigation for the legend.
|
||
|
|
*
|
||
|
|
* @see [accessibility.keyboardNavigation](#accessibility.keyboardNavigation.enabled)
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
enabled: true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @optionparent exporting
|
||
|
|
*/
|
||
|
|
exporting: {
|
||
|
|
/**
|
||
|
|
* Accessibility options for the exporting menu. Requires the
|
||
|
|
* Accessibility module.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
* @requires modules/accessibility
|
||
|
|
*/
|
||
|
|
accessibility: {
|
||
|
|
/**
|
||
|
|
* Enable accessibility support for the export menu.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
enabled: true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return options;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/options/langOptions.js', [], function () {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Default lang/i18n options for accessibility.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var langOptions = {
|
||
|
|
/**
|
||
|
|
* Configure the accessibility strings in the chart. Requires the
|
||
|
|
* [accessibility module](https://code.highcharts.com/modules/accessibility.js)
|
||
|
|
* to be loaded. For a description of the module and information on its
|
||
|
|
* features, see
|
||
|
|
* [Highcharts Accessibility](https://www.highcharts.com/docs/chart-concepts/accessibility).
|
||
|
|
*
|
||
|
|
* For more dynamic control over the accessibility functionality, see
|
||
|
|
* [accessibility.pointDescriptionFormatter](#accessibility.pointDescriptionFormatter),
|
||
|
|
* [accessibility.seriesDescriptionFormatter](#accessibility.seriesDescriptionFormatter),
|
||
|
|
* and
|
||
|
|
* [accessibility.screenReaderSectionFormatter](#accessibility.screenReaderSectionFormatter).
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
* @optionparent lang.accessibility
|
||
|
|
*/
|
||
|
|
accessibility: {
|
||
|
|
defaultChartTitle: 'Chart',
|
||
|
|
chartContainerLabel: '{title}. Highcharts interactive chart.',
|
||
|
|
svgContainerLabel: 'Interactive chart',
|
||
|
|
drillUpButton: '{buttonText}',
|
||
|
|
credits: 'Chart credits: {creditsStr}',
|
||
|
|
/**
|
||
|
|
* Thousands separator to use when formatting numbers for screen
|
||
|
|
* readers. Note that many screen readers will not handle space as a
|
||
|
|
* thousands separator, and will consider "11 700" as two numbers.
|
||
|
|
*
|
||
|
|
* Set to `null` to use the separator defined in
|
||
|
|
* [lang.thousandsSep](lang.thousandsSep).
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
thousandsSep: ',',
|
||
|
|
/**
|
||
|
|
* Title element text for the chart SVG element. Leave this
|
||
|
|
* empty to disable adding the title element. Browsers will display
|
||
|
|
* this content when hovering over elements in the chart. Assistive
|
||
|
|
* technology may use this element to label the chart.
|
||
|
|
*
|
||
|
|
* @since 6.0.8
|
||
|
|
*/
|
||
|
|
svgContainerTitle: '',
|
||
|
|
/**
|
||
|
|
* Set a label on the container wrapping the SVG.
|
||
|
|
*
|
||
|
|
* @see [chartContainerLabel](#lang.accessibility.chartContainerLabel)
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
graphicContainerLabel: '',
|
||
|
|
/**
|
||
|
|
* Language options for the screen reader information sections added
|
||
|
|
* before and after the charts.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
screenReaderSection: {
|
||
|
|
beforeRegionLabel: 'Chart screen reader information.',
|
||
|
|
afterRegionLabel: '',
|
||
|
|
/**
|
||
|
|
* Language options for annotation descriptions.
|
||
|
|
*
|
||
|
|
* @since 8.0.1
|
||
|
|
*/
|
||
|
|
annotations: {
|
||
|
|
heading: 'Chart annotations summary',
|
||
|
|
descriptionSinglePoint: '{annotationText}. Related to {annotationPoint}',
|
||
|
|
descriptionMultiplePoints: '{annotationText}. Related to {annotationPoint}' +
|
||
|
|
'{ Also related to, #each(additionalAnnotationPoints)}',
|
||
|
|
descriptionNoPoints: '{annotationText}'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Label for the end of the chart. Announced by screen readers.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
endOfChartMarker: 'End of interactive chart.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Language options for sonification.
|
||
|
|
*
|
||
|
|
* @since 8.0.1
|
||
|
|
*/
|
||
|
|
sonification: {
|
||
|
|
playAsSoundButtonText: 'Play as sound, {chartTitle}',
|
||
|
|
playAsSoundClickAnnouncement: 'Play'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Language options for accessibility of the legend.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
legend: {
|
||
|
|
legendLabel: 'Toggle series visibility',
|
||
|
|
legendItem: 'Toggle visibility of {itemName}'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Chart and map zoom accessibility language options.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
zoom: {
|
||
|
|
mapZoomIn: 'Zoom chart',
|
||
|
|
mapZoomOut: 'Zoom out chart',
|
||
|
|
resetZoomButton: 'Reset zoom'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Range selector language options for accessibility.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
rangeSelector: {
|
||
|
|
minInputLabel: 'Select start date.',
|
||
|
|
maxInputLabel: 'Select end date.',
|
||
|
|
buttonText: 'Select range {buttonText}'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Accessibility language options for the data table.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
table: {
|
||
|
|
viewAsDataTableButtonText: 'View as data table, {chartTitle}',
|
||
|
|
tableSummary: 'Table representation of chart.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Default announcement for new data in charts. If addPoint or
|
||
|
|
* addSeries is used, and only one series/point is added, the
|
||
|
|
* `newPointAnnounce` and `newSeriesAnnounce` strings are used.
|
||
|
|
* The `...Single` versions will be used if there is only one chart
|
||
|
|
* on the page, and the `...Multiple` versions will be used if there
|
||
|
|
* are multiple charts on the page. For all other new data events,
|
||
|
|
* the `newDataAnnounce` string will be used.
|
||
|
|
*
|
||
|
|
* @since 7.1.0
|
||
|
|
*/
|
||
|
|
announceNewData: {
|
||
|
|
newDataAnnounce: 'Updated data for chart {chartTitle}',
|
||
|
|
newSeriesAnnounceSingle: 'New data series: {seriesDesc}',
|
||
|
|
newPointAnnounceSingle: 'New data point: {pointDesc}',
|
||
|
|
newSeriesAnnounceMultiple: 'New data series in chart {chartTitle}: {seriesDesc}',
|
||
|
|
newPointAnnounceMultiple: 'New data point in chart {chartTitle}: {pointDesc}'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Descriptions of lesser known series types. The relevant
|
||
|
|
* description is added to the screen reader information region
|
||
|
|
* when these series types are used.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
seriesTypeDescriptions: {
|
||
|
|
boxplot: 'Box plot charts are typically used to display ' +
|
||
|
|
'groups of statistical data. Each data point in the ' +
|
||
|
|
'chart can have up to 5 values: minimum, lower quartile, ' +
|
||
|
|
'median, upper quartile, and maximum.',
|
||
|
|
arearange: 'Arearange charts are line charts displaying a ' +
|
||
|
|
'range between a lower and higher value for each point.',
|
||
|
|
areasplinerange: 'These charts are line charts displaying a ' +
|
||
|
|
'range between a lower and higher value for each point.',
|
||
|
|
bubble: 'Bubble charts are scatter charts where each data ' +
|
||
|
|
'point also has a size value.',
|
||
|
|
columnrange: 'Columnrange charts are column charts ' +
|
||
|
|
'displaying a range between a lower and higher value for ' +
|
||
|
|
'each point.',
|
||
|
|
errorbar: 'Errorbar series are used to display the ' +
|
||
|
|
'variability of the data.',
|
||
|
|
funnel: 'Funnel charts are used to display reduction of data ' +
|
||
|
|
'in stages.',
|
||
|
|
pyramid: 'Pyramid charts consist of a single pyramid with ' +
|
||
|
|
'item heights corresponding to each point value.',
|
||
|
|
waterfall: 'A waterfall chart is a column chart where each ' +
|
||
|
|
'column contributes towards a total end value.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Chart type description strings. This is added to the chart
|
||
|
|
* information region.
|
||
|
|
*
|
||
|
|
* If there is only a single series type used in the chart, we use
|
||
|
|
* the format string for the series type, or default if missing.
|
||
|
|
* There is one format string for cases where there is only a single
|
||
|
|
* series in the chart, and one for multiple series of the same
|
||
|
|
* type.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
chartTypes: {
|
||
|
|
/* eslint-disable max-len */
|
||
|
|
emptyChart: 'Empty chart',
|
||
|
|
mapTypeDescription: 'Map of {mapTitle} with {numSeries} data series.',
|
||
|
|
unknownMap: 'Map of unspecified region with {numSeries} data series.',
|
||
|
|
combinationChart: 'Combination chart with {numSeries} data series.',
|
||
|
|
defaultSingle: 'Chart with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
defaultMultiple: 'Chart with {numSeries} data series.',
|
||
|
|
splineSingle: 'Line chart with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
splineMultiple: 'Line chart with {numSeries} lines.',
|
||
|
|
lineSingle: 'Line chart with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
lineMultiple: 'Line chart with {numSeries} lines.',
|
||
|
|
columnSingle: 'Bar chart with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
columnMultiple: 'Bar chart with {numSeries} data series.',
|
||
|
|
barSingle: 'Bar chart with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
barMultiple: 'Bar chart with {numSeries} data series.',
|
||
|
|
pieSingle: 'Pie chart with {numPoints} {#plural(numPoints, slices, slice)}.',
|
||
|
|
pieMultiple: 'Pie chart with {numSeries} pies.',
|
||
|
|
scatterSingle: 'Scatter chart with {numPoints} {#plural(numPoints, points, point)}.',
|
||
|
|
scatterMultiple: 'Scatter chart with {numSeries} data series.',
|
||
|
|
boxplotSingle: 'Boxplot with {numPoints} {#plural(numPoints, boxes, box)}.',
|
||
|
|
boxplotMultiple: 'Boxplot with {numSeries} data series.',
|
||
|
|
bubbleSingle: 'Bubble chart with {numPoints} {#plural(numPoints, bubbles, bubble)}.',
|
||
|
|
bubbleMultiple: 'Bubble chart with {numSeries} data series.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Axis description format strings.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
axis: {
|
||
|
|
/* eslint-disable max-len */
|
||
|
|
xAxisDescriptionSingular: 'The chart has 1 X axis displaying {names[0]}. {ranges[0]}',
|
||
|
|
xAxisDescriptionPlural: 'The chart has {numAxes} X axes displaying {#each(names, -1) }and {names[-1]}.',
|
||
|
|
yAxisDescriptionSingular: 'The chart has 1 Y axis displaying {names[0]}. {ranges[0]}',
|
||
|
|
yAxisDescriptionPlural: 'The chart has {numAxes} Y axes displaying {#each(names, -1) }and {names[-1]}.',
|
||
|
|
timeRangeDays: 'Range: {range} days.',
|
||
|
|
timeRangeHours: 'Range: {range} hours.',
|
||
|
|
timeRangeMinutes: 'Range: {range} minutes.',
|
||
|
|
timeRangeSeconds: 'Range: {range} seconds.',
|
||
|
|
rangeFromTo: 'Range: {rangeFrom} to {rangeTo}.',
|
||
|
|
rangeCategories: 'Range: {numCategories} categories.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Exporting menu format strings for accessibility module.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
exporting: {
|
||
|
|
chartMenuLabel: 'Chart menu',
|
||
|
|
menuButtonLabel: 'View chart menu',
|
||
|
|
exportRegionLabel: 'Chart menu'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Lang configuration for different series types. For more dynamic
|
||
|
|
* control over the series element descriptions, see
|
||
|
|
* [accessibility.seriesDescriptionFormatter](#accessibility.seriesDescriptionFormatter).
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
series: {
|
||
|
|
/**
|
||
|
|
* Lang configuration for the series main summary. Each series
|
||
|
|
* type has two modes:
|
||
|
|
*
|
||
|
|
* 1. This series type is the only series type used in the
|
||
|
|
* chart
|
||
|
|
*
|
||
|
|
* 2. This is a combination chart with multiple series types
|
||
|
|
*
|
||
|
|
* If a definition does not exist for the specific series type
|
||
|
|
* and mode, the 'default' lang definitions are used.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
summary: {
|
||
|
|
/* eslint-disable max-len */
|
||
|
|
'default': '{name}, series {ix} of {numSeries} with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
defaultCombination: '{name}, series {ix} of {numSeries} with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
line: '{name}, line {ix} of {numSeries} with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
lineCombination: '{name}, series {ix} of {numSeries}. Line with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
spline: '{name}, line {ix} of {numSeries} with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
splineCombination: '{name}, series {ix} of {numSeries}. Line with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
column: '{name}, bar series {ix} of {numSeries} with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
columnCombination: '{name}, series {ix} of {numSeries}. Bar series with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
bar: '{name}, bar series {ix} of {numSeries} with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
barCombination: '{name}, series {ix} of {numSeries}. Bar series with {numPoints} {#plural(numPoints, bars, bar)}.',
|
||
|
|
pie: '{name}, pie {ix} of {numSeries} with {numPoints} {#plural(numPoints, slices, slice)}.',
|
||
|
|
pieCombination: '{name}, series {ix} of {numSeries}. Pie with {numPoints} {#plural(numPoints, slices, slice)}.',
|
||
|
|
scatter: '{name}, scatter plot {ix} of {numSeries} with {numPoints} {#plural(numPoints, points, point)}.',
|
||
|
|
scatterCombination: '{name}, series {ix} of {numSeries}, scatter plot with {numPoints} {#plural(numPoints, points, point)}.',
|
||
|
|
boxplot: '{name}, boxplot {ix} of {numSeries} with {numPoints} {#plural(numPoints, boxes, box)}.',
|
||
|
|
boxplotCombination: '{name}, series {ix} of {numSeries}. Boxplot with {numPoints} {#plural(numPoints, boxes, box)}.',
|
||
|
|
bubble: '{name}, bubble series {ix} of {numSeries} with {numPoints} {#plural(numPoints, bubbles, bubble)}.',
|
||
|
|
bubbleCombination: '{name}, series {ix} of {numSeries}. Bubble series with {numPoints} {#plural(numPoints, bubbles, bubble)}.',
|
||
|
|
map: '{name}, map {ix} of {numSeries} with {numPoints} {#plural(numPoints, areas, area)}.',
|
||
|
|
mapCombination: '{name}, series {ix} of {numSeries}. Map with {numPoints} {#plural(numPoints, areas, area)}.',
|
||
|
|
mapline: '{name}, line {ix} of {numSeries} with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
maplineCombination: '{name}, series {ix} of {numSeries}. Line with {numPoints} data {#plural(numPoints, points, point)}.',
|
||
|
|
mapbubble: '{name}, bubble series {ix} of {numSeries} with {numPoints} {#plural(numPoints, bubbles, bubble)}.',
|
||
|
|
mapbubbleCombination: '{name}, series {ix} of {numSeries}. Bubble series with {numPoints} {#plural(numPoints, bubbles, bubble)}.'
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* User supplied description text. This is added in the point
|
||
|
|
* comment description by default if present.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
description: '{description}',
|
||
|
|
/**
|
||
|
|
* xAxis description for series if there are multiple xAxes in
|
||
|
|
* the chart.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
xAxisDescription: 'X axis, {name}',
|
||
|
|
/**
|
||
|
|
* yAxis description for series if there are multiple yAxes in
|
||
|
|
* the chart.
|
||
|
|
*
|
||
|
|
* @since 6.0.6
|
||
|
|
*/
|
||
|
|
yAxisDescription: 'Y axis, {name}',
|
||
|
|
/**
|
||
|
|
* Description for the value of null points.
|
||
|
|
*
|
||
|
|
* @since 8.0.0
|
||
|
|
*/
|
||
|
|
nullPointValue: 'No value',
|
||
|
|
/**
|
||
|
|
* Description for annotations on a point, as it is made available
|
||
|
|
* to assistive technology.
|
||
|
|
*
|
||
|
|
* @since 8.0.1
|
||
|
|
*/
|
||
|
|
pointAnnotationsDescription: '{Annotation: #each(annotations). }'
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return langOptions;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/options/deprecatedOptions.js', [_modules['parts/Utilities.js']], function (U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Default options for accessibility.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
/* eslint-disable max-len */
|
||
|
|
/*
|
||
|
|
* List of deprecated options:
|
||
|
|
*
|
||
|
|
* chart.description -> accessibility.description
|
||
|
|
* chart.typeDescription -> accessibility.typeDescription
|
||
|
|
* series.description -> series.accessibility.description
|
||
|
|
* series.exposeElementToA11y -> series.accessibility.exposeAsGroupOnly
|
||
|
|
* series.pointDescriptionFormatter ->
|
||
|
|
* series.accessibility.pointDescriptionFormatter
|
||
|
|
* series.skipKeyboardNavigation ->
|
||
|
|
* series.accessibility.keyboardNavigation.enabled
|
||
|
|
* point.description -> point.accessibility.description !!!! WARNING: No longer deprecated and handled, removed for HC8.
|
||
|
|
* axis.description -> axis.accessibility.description
|
||
|
|
*
|
||
|
|
* accessibility.pointDateFormat -> accessibility.point.dateFormat
|
||
|
|
* accessibility.addTableShortcut -> Handled by screenReaderSection.beforeChartFormat
|
||
|
|
* accessibility.pointDateFormatter -> accessibility.point.dateFormatter
|
||
|
|
* accessibility.pointDescriptionFormatter -> accessibility.point.descriptionFormatter
|
||
|
|
* accessibility.pointDescriptionThreshold -> accessibility.series.pointDescriptionEnabledThreshold
|
||
|
|
* accessibility.pointNavigationThreshold -> accessibility.keyboardNavigation.seriesNavigation.pointNavigationEnabledThreshold
|
||
|
|
* accessibility.pointValueDecimals -> accessibility.point.valueDecimals
|
||
|
|
* accessibility.pointValuePrefix -> accessibility.point.valuePrefix
|
||
|
|
* accessibility.pointValueSuffix -> accessibility.point.valueSuffix
|
||
|
|
* accessibility.screenReaderSectionFormatter -> accessibility.screenReaderSection.beforeChartFormatter
|
||
|
|
* accessibility.describeSingleSeries -> accessibility.series.describeSingleSeries
|
||
|
|
* accessibility.seriesDescriptionFormatter -> accessibility.series.descriptionFormatter
|
||
|
|
* accessibility.onTableAnchorClick -> accessibility.screenReaderSection.onViewDataTableClick
|
||
|
|
* accessibility.axisRangeDateFormat -> accessibility.screenReaderSection.axisRangeDateFormat
|
||
|
|
* accessibility.keyboardNavigation.skipNullPoints -> accessibility.keyboardNavigation.seriesNavigation.skipNullPoints
|
||
|
|
* accessibility.keyboardNavigation.mode -> accessibility.keyboardNavigation.seriesNavigation.mode
|
||
|
|
*
|
||
|
|
* lang.accessibility.chartHeading -> no longer used, remove
|
||
|
|
* lang.accessibility.legendItem -> lang.accessibility.legend.legendItem
|
||
|
|
* lang.accessibility.legendLabel -> lang.accessibility.legend.legendLabel
|
||
|
|
* lang.accessibility.mapZoomIn -> lang.accessibility.zoom.mapZoomIn
|
||
|
|
* lang.accessibility.mapZoomOut -> lang.accessibility.zoom.mapZoomOut
|
||
|
|
* lang.accessibility.resetZoomButton -> lang.accessibility.zoom.resetZoomButton
|
||
|
|
* lang.accessibility.screenReaderRegionLabel -> lang.accessibility.screenReaderSection.beforeRegionLabel
|
||
|
|
* lang.accessibility.rangeSelectorButton -> lang.accessibility.rangeSelector.buttonText
|
||
|
|
* lang.accessibility.rangeSelectorMaxInput -> lang.accessibility.rangeSelector.maxInputLabel
|
||
|
|
* lang.accessibility.rangeSelectorMinInput -> lang.accessibility.rangeSelector.minInputLabel
|
||
|
|
* lang.accessibility.svgContainerEnd -> lang.accessibility.screenReaderSection.endOfChartMarker
|
||
|
|
* lang.accessibility.viewAsDataTable -> lang.accessibility.table.viewAsDataTableButtonText
|
||
|
|
* lang.accessibility.tableSummary -> lang.accessibility.table.tableSummary
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
/* eslint-enable max-len */
|
||
|
|
var error = U.error, pick = U.pick;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* Warn user that a deprecated option was used.
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* @param {string} oldOption
|
||
|
|
* @param {string} newOption
|
||
|
|
* @return {void}
|
||
|
|
*/
|
||
|
|
function warn(chart, oldOption, newOption) {
|
||
|
|
error('Highcharts: Deprecated option ' + oldOption +
|
||
|
|
' used. This will be removed from future versions of Highcharts. Use ' +
|
||
|
|
newOption + ' instead.', false, chart);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Set a new option on a root prop, where the option is defined as an array of
|
||
|
|
* suboptions.
|
||
|
|
* @private
|
||
|
|
* @param root
|
||
|
|
* @param {Array<string>} optionAsArray
|
||
|
|
* @param {*} val
|
||
|
|
* @return {void}
|
||
|
|
*/
|
||
|
|
function traverseSetOption(root, optionAsArray, val) {
|
||
|
|
var opt = root, prop, i = 0;
|
||
|
|
for (; i < optionAsArray.length - 1; ++i) {
|
||
|
|
prop = optionAsArray[i];
|
||
|
|
opt = opt[prop] = pick(opt[prop], {});
|
||
|
|
}
|
||
|
|
opt[optionAsArray[optionAsArray.length - 1]] = val;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* If we have a clear root option node for old and new options and a mapping
|
||
|
|
* between, we can use this generic function for the copy and warn logic.
|
||
|
|
*/
|
||
|
|
function deprecateFromOptionsMap(chart, rootOldAsArray, rootNewAsArray, mapToNewOptions) {
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function getChildProp(root, propAsArray) {
|
||
|
|
return propAsArray.reduce(function (acc, cur) {
|
||
|
|
return acc[cur];
|
||
|
|
}, root);
|
||
|
|
}
|
||
|
|
var rootOld = getChildProp(chart.options, rootOldAsArray), rootNew = getChildProp(chart.options, rootNewAsArray);
|
||
|
|
Object.keys(mapToNewOptions).forEach(function (oldOptionKey) {
|
||
|
|
var val = rootOld[oldOptionKey];
|
||
|
|
if (typeof val !== 'undefined') {
|
||
|
|
traverseSetOption(rootNew, mapToNewOptions[oldOptionKey], val);
|
||
|
|
warn(chart, rootOldAsArray.join('.') + '.' + oldOptionKey, rootNewAsArray.join('.') + '.' +
|
||
|
|
mapToNewOptions[oldOptionKey].join('.'));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedChartOptions(chart) {
|
||
|
|
var chartOptions = chart.options.chart || {}, a11yOptions = chart.options.accessibility || {};
|
||
|
|
['description', 'typeDescription'].forEach(function (prop) {
|
||
|
|
if (chartOptions[prop]) {
|
||
|
|
a11yOptions[prop] = chartOptions[prop];
|
||
|
|
warn(chart, 'chart.' + prop, 'accessibility.' + prop);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedAxisOptions(chart) {
|
||
|
|
chart.axes.forEach(function (axis) {
|
||
|
|
var opts = axis.options;
|
||
|
|
if (opts && opts.description) {
|
||
|
|
opts.accessibility = opts.accessibility || {};
|
||
|
|
opts.accessibility.description = opts.description;
|
||
|
|
warn(chart, 'axis.description', 'axis.accessibility.description');
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedSeriesOptions(chart) {
|
||
|
|
// Map of deprecated series options. New options are defined as
|
||
|
|
// arrays of paths under series.options.
|
||
|
|
var oldToNewSeriesOptions = {
|
||
|
|
description: ['accessibility', 'description'],
|
||
|
|
exposeElementToA11y: ['accessibility', 'exposeAsGroupOnly'],
|
||
|
|
pointDescriptionFormatter: [
|
||
|
|
'accessibility', 'pointDescriptionFormatter'
|
||
|
|
],
|
||
|
|
skipKeyboardNavigation: [
|
||
|
|
'accessibility', 'keyboardNavigation', 'enabled'
|
||
|
|
]
|
||
|
|
};
|
||
|
|
chart.series.forEach(function (series) {
|
||
|
|
// Handle series wide options
|
||
|
|
Object.keys(oldToNewSeriesOptions).forEach(function (oldOption) {
|
||
|
|
var optionVal = series.options[oldOption];
|
||
|
|
if (typeof optionVal !== 'undefined') {
|
||
|
|
// Set the new option
|
||
|
|
traverseSetOption(series.options, oldToNewSeriesOptions[oldOption],
|
||
|
|
// Note that skipKeyboardNavigation has inverted option
|
||
|
|
// value, since we set enabled rather than disabled
|
||
|
|
oldOption === 'skipKeyboardNavigation' ?
|
||
|
|
!optionVal : optionVal);
|
||
|
|
warn(chart, 'series.' + oldOption, 'series.' +
|
||
|
|
oldToNewSeriesOptions[oldOption].join('.'));
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedTopLevelAccessibilityOptions(chart) {
|
||
|
|
deprecateFromOptionsMap(chart, ['accessibility'], ['accessibility'], {
|
||
|
|
pointDateFormat: ['point', 'dateFormat'],
|
||
|
|
pointDateFormatter: ['point', 'dateFormatter'],
|
||
|
|
pointDescriptionFormatter: ['point', 'descriptionFormatter'],
|
||
|
|
pointDescriptionThreshold: ['series',
|
||
|
|
'pointDescriptionEnabledThreshold'],
|
||
|
|
pointNavigationThreshold: ['keyboardNavigation', 'seriesNavigation',
|
||
|
|
'pointNavigationEnabledThreshold'],
|
||
|
|
pointValueDecimals: ['point', 'valueDecimals'],
|
||
|
|
pointValuePrefix: ['point', 'valuePrefix'],
|
||
|
|
pointValueSuffix: ['point', 'valueSuffix'],
|
||
|
|
screenReaderSectionFormatter: ['screenReaderSection',
|
||
|
|
'beforeChartFormatter'],
|
||
|
|
describeSingleSeries: ['series', 'describeSingleSeries'],
|
||
|
|
seriesDescriptionFormatter: ['series', 'descriptionFormatter'],
|
||
|
|
onTableAnchorClick: ['screenReaderSection', 'onViewDataTableClick'],
|
||
|
|
axisRangeDateFormat: ['screenReaderSection', 'axisRangeDateFormat']
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedKeyboardNavigationOptions(chart) {
|
||
|
|
deprecateFromOptionsMap(chart, ['accessibility', 'keyboardNavigation'], ['accessibility', 'keyboardNavigation', 'seriesNavigation'], {
|
||
|
|
skipNullPoints: ['skipNullPoints'],
|
||
|
|
mode: ['mode']
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedLangOptions(chart) {
|
||
|
|
deprecateFromOptionsMap(chart, ['lang', 'accessibility'], ['lang', 'accessibility'], {
|
||
|
|
legendItem: ['legend', 'legendItem'],
|
||
|
|
legendLabel: ['legend', 'legendLabel'],
|
||
|
|
mapZoomIn: ['zoom', 'mapZoomIn'],
|
||
|
|
mapZoomOut: ['zoom', 'mapZoomOut'],
|
||
|
|
resetZoomButton: ['zoom', 'resetZoomButton'],
|
||
|
|
screenReaderRegionLabel: ['screenReaderSection',
|
||
|
|
'beforeRegionLabel'],
|
||
|
|
rangeSelectorButton: ['rangeSelector', 'buttonText'],
|
||
|
|
rangeSelectorMaxInput: ['rangeSelector', 'maxInputLabel'],
|
||
|
|
rangeSelectorMinInput: ['rangeSelector', 'minInputLabel'],
|
||
|
|
svgContainerEnd: ['screenReaderSection', 'endOfChartMarker'],
|
||
|
|
viewAsDataTable: ['table', 'viewAsDataTableButtonText'],
|
||
|
|
tableSummary: ['table', 'tableSummary']
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Copy options that are deprecated over to new options. Logs warnings to
|
||
|
|
* console if deprecated options are used.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
function copyDeprecatedOptions(chart) {
|
||
|
|
copyDeprecatedChartOptions(chart);
|
||
|
|
copyDeprecatedAxisOptions(chart);
|
||
|
|
if (chart.series) {
|
||
|
|
copyDeprecatedSeriesOptions(chart);
|
||
|
|
}
|
||
|
|
copyDeprecatedTopLevelAccessibilityOptions(chart);
|
||
|
|
copyDeprecatedKeyboardNavigationOptions(chart);
|
||
|
|
copyDeprecatedLangOptions(chart);
|
||
|
|
}
|
||
|
|
|
||
|
|
return copyDeprecatedOptions;
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/a11y-i18n.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* Accessibility module - internationalization support
|
||
|
|
*
|
||
|
|
* (c) 2010-2020 Highsoft AS
|
||
|
|
* Author: Øystein Moseng
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var format = U.format, pick = U.pick;
|
||
|
|
/* eslint-disable valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* String trim that works for IE6-8 as well.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function stringTrim
|
||
|
|
*
|
||
|
|
* @param {string} str
|
||
|
|
* The input string
|
||
|
|
*
|
||
|
|
* @return {string}
|
||
|
|
* The trimmed string
|
||
|
|
*/
|
||
|
|
function stringTrim(str) {
|
||
|
|
return str.trim && str.trim() || str.replace(/^\s+|\s+$/g, '');
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* i18n utility function. Format a single array or plural statement in a format
|
||
|
|
* string. If the statement is not an array or plural statement, returns the
|
||
|
|
* statement within brackets. Invalid array statements return an empty string.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function formatExtendedStatement
|
||
|
|
*
|
||
|
|
* @param {string} statement
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Dictionary<*>} ctx
|
||
|
|
* Context to apply to the format string.
|
||
|
|
*
|
||
|
|
* @return {string}
|
||
|
|
*/
|
||
|
|
function formatExtendedStatement(statement, ctx) {
|
||
|
|
var eachStart = statement.indexOf('#each('), pluralStart = statement.indexOf('#plural('), indexStart = statement.indexOf('['), indexEnd = statement.indexOf(']'), arr, result;
|
||
|
|
// Dealing with an each-function?
|
||
|
|
if (eachStart > -1) {
|
||
|
|
var eachEnd = statement.slice(eachStart).indexOf(')') + eachStart, preEach = statement.substring(0, eachStart), postEach = statement.substring(eachEnd + 1), eachStatement = statement.substring(eachStart + 6, eachEnd), eachArguments = eachStatement.split(','), lenArg = Number(eachArguments[1]), len;
|
||
|
|
result = '';
|
||
|
|
arr = ctx[eachArguments[0]];
|
||
|
|
if (arr) {
|
||
|
|
lenArg = isNaN(lenArg) ? arr.length : lenArg;
|
||
|
|
len = lenArg < 0 ?
|
||
|
|
arr.length + lenArg :
|
||
|
|
Math.min(lenArg, arr.length); // Overshoot
|
||
|
|
// Run through the array for the specified length
|
||
|
|
for (var i = 0; i < len; ++i) {
|
||
|
|
result += preEach + arr[i] + postEach;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result.length ? result : '';
|
||
|
|
}
|
||
|
|
// Dealing with a plural-function?
|
||
|
|
if (pluralStart > -1) {
|
||
|
|
var pluralEnd = statement.slice(pluralStart).indexOf(')') + pluralStart, pluralStatement = statement.substring(pluralStart + 8, pluralEnd), pluralArguments = pluralStatement.split(','), num = Number(ctx[pluralArguments[0]]);
|
||
|
|
switch (num) {
|
||
|
|
case 0:
|
||
|
|
result = pick(pluralArguments[4], pluralArguments[1]);
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
result = pick(pluralArguments[2], pluralArguments[1]);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
result = pick(pluralArguments[3], pluralArguments[1]);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
result = pluralArguments[1];
|
||
|
|
}
|
||
|
|
return result ? stringTrim(result) : '';
|
||
|
|
}
|
||
|
|
// Array index
|
||
|
|
if (indexStart > -1) {
|
||
|
|
var arrayName = statement.substring(0, indexStart), ix = Number(statement.substring(indexStart + 1, indexEnd)), val;
|
||
|
|
arr = ctx[arrayName];
|
||
|
|
if (!isNaN(ix) && arr) {
|
||
|
|
if (ix < 0) {
|
||
|
|
val = arr[arr.length + ix];
|
||
|
|
// Handle negative overshoot
|
||
|
|
if (typeof val === 'undefined') {
|
||
|
|
val = arr[0];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
val = arr[ix];
|
||
|
|
// Handle positive overshoot
|
||
|
|
if (typeof val === 'undefined') {
|
||
|
|
val = arr[arr.length - 1];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return typeof val !== 'undefined' ? val : '';
|
||
|
|
}
|
||
|
|
// Standard substitution, delegate to format or similar
|
||
|
|
return '{' + statement + '}';
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* i18n formatting function. Extends Highcharts.format() functionality by also
|
||
|
|
* handling arrays and plural conditionals. Arrays can be indexed as follows:
|
||
|
|
*
|
||
|
|
* - Format: 'This is the first index: {myArray[0]}. The last: {myArray[-1]}.'
|
||
|
|
*
|
||
|
|
* - Context: { myArray: [0, 1, 2, 3, 4, 5] }
|
||
|
|
*
|
||
|
|
* - Result: 'This is the first index: 0. The last: 5.'
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* They can also be iterated using the #each() function. This will repeat the
|
||
|
|
* contents of the bracket expression for each element. Example:
|
||
|
|
*
|
||
|
|
* - Format: 'List contains: {#each(myArray)cm }'
|
||
|
|
*
|
||
|
|
* - Context: { myArray: [0, 1, 2] }
|
||
|
|
*
|
||
|
|
* - Result: 'List contains: 0cm 1cm 2cm '
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* The #each() function optionally takes a length parameter. If positive, this
|
||
|
|
* parameter specifies the max number of elements to iterate through. If
|
||
|
|
* negative, the function will subtract the number from the length of the array.
|
||
|
|
* Use this to stop iterating before the array ends. Example:
|
||
|
|
*
|
||
|
|
* - Format: 'List contains: {#each(myArray, -1) }and {myArray[-1]}.'
|
||
|
|
*
|
||
|
|
* - Context: { myArray: [0, 1, 2, 3] }
|
||
|
|
*
|
||
|
|
* - Result: 'List contains: 0, 1, 2, and 3.'
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Use the #plural() function to pick a string depending on whether or not a
|
||
|
|
* context object is 1. Arguments are #plural(obj, plural, singular). Example:
|
||
|
|
*
|
||
|
|
* - Format: 'Has {numPoints} {#plural(numPoints, points, point}.'
|
||
|
|
*
|
||
|
|
* - Context: { numPoints: 5 }
|
||
|
|
*
|
||
|
|
* - Result: 'Has 5 points.'
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* Optionally there are additional parameters for dual and none: #plural(obj,
|
||
|
|
* plural, singular, dual, none). Example:
|
||
|
|
*
|
||
|
|
* - Format: 'Has {#plural(numPoints, many points, one point, two points,
|
||
|
|
* none}.'
|
||
|
|
*
|
||
|
|
* - Context: { numPoints: 2 }
|
||
|
|
*
|
||
|
|
* - Result: 'Has two points.'
|
||
|
|
*
|
||
|
|
*
|
||
|
|
* The dual or none parameters will take precedence if they are supplied.
|
||
|
|
*
|
||
|
|
* @requires modules/accessibility
|
||
|
|
*
|
||
|
|
* @function Highcharts.i18nFormat
|
||
|
|
*
|
||
|
|
* @param {string} formatString
|
||
|
|
* The string to format.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Dictionary<*>} context
|
||
|
|
* Context to apply to the format string.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* A `Chart` instance with a time object and numberFormatter, passed on
|
||
|
|
* to format().
|
||
|
|
*
|
||
|
|
* @return {string}
|
||
|
|
* The formatted string.
|
||
|
|
*/
|
||
|
|
H.i18nFormat = function (formatString, context, chart) {
|
||
|
|
var getFirstBracketStatement = function (sourceStr, offset) {
|
||
|
|
var str = sourceStr.slice(offset || 0), startBracket = str.indexOf('{'), endBracket = str.indexOf('}');
|
||
|
|
if (startBracket > -1 && endBracket > startBracket) {
|
||
|
|
return {
|
||
|
|
statement: str.substring(startBracket + 1, endBracket),
|
||
|
|
begin: offset + startBracket + 1,
|
||
|
|
end: offset + endBracket
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}, tokens = [], bracketRes, constRes, cursor = 0;
|
||
|
|
// Tokenize format string into bracket statements and constants
|
||
|
|
do {
|
||
|
|
bracketRes = getFirstBracketStatement(formatString, cursor);
|
||
|
|
constRes = formatString.substring(cursor, bracketRes && bracketRes.begin - 1);
|
||
|
|
// If we have constant content before this bracket statement, add it
|
||
|
|
if (constRes.length) {
|
||
|
|
tokens.push({
|
||
|
|
value: constRes,
|
||
|
|
type: 'constant'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
// Add the bracket statement
|
||
|
|
if (bracketRes) {
|
||
|
|
tokens.push({
|
||
|
|
value: bracketRes.statement,
|
||
|
|
type: 'statement'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
cursor = bracketRes ? bracketRes.end + 1 : cursor + 1;
|
||
|
|
} while (bracketRes);
|
||
|
|
// Perform the formatting. The formatArrayStatement function returns the
|
||
|
|
// statement in brackets if it is not an array statement, which means it
|
||
|
|
// gets picked up by format below.
|
||
|
|
tokens.forEach(function (token) {
|
||
|
|
if (token.type === 'statement') {
|
||
|
|
token.value = formatExtendedStatement(token.value, context);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
// Join string back together and pass to format to pick up non-array
|
||
|
|
// statements.
|
||
|
|
return format(tokens.reduce(function (acc, cur) {
|
||
|
|
return acc + cur.value;
|
||
|
|
}, ''), context, chart);
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Apply context to a format string from lang options of the chart.
|
||
|
|
*
|
||
|
|
* @requires modules/accessibility
|
||
|
|
*
|
||
|
|
* @function Highcharts.Chart#langFormat
|
||
|
|
*
|
||
|
|
* @param {string} langKey
|
||
|
|
* Key (using dot notation) into lang option structure.
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Dictionary<*>} context
|
||
|
|
* Context to apply to the format string.
|
||
|
|
*
|
||
|
|
* @return {string}
|
||
|
|
* The formatted string.
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.langFormat = function (langKey, context) {
|
||
|
|
var keys = langKey.split('.'), formatString = this.options.lang, i = 0;
|
||
|
|
for (; i < keys.length; ++i) {
|
||
|
|
formatString = formatString && formatString[keys[i]];
|
||
|
|
}
|
||
|
|
return typeof formatString === 'string' ?
|
||
|
|
H.i18nFormat(formatString, context, this) : '';
|
||
|
|
};
|
||
|
|
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/focusBorder.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Extend SVG and Chart classes with focus border capabilities.
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var addEvent = U.addEvent, extend = U.extend, pick = U.pick;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
// Attributes that trigger a focus border update
|
||
|
|
var svgElementBorderUpdateTriggers = [
|
||
|
|
'x', 'y', 'transform', 'width', 'height', 'r', 'd', 'stroke-width'
|
||
|
|
];
|
||
|
|
/**
|
||
|
|
* Add hook to destroy focus border if SVG element is destroyed, unless
|
||
|
|
* hook already exists.
|
||
|
|
*
|
||
|
|
* @param el Element to add destroy hook to
|
||
|
|
*/
|
||
|
|
function addDestroyFocusBorderHook(el) {
|
||
|
|
if (el.focusBorderDestroyHook) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
var origDestroy = el.destroy;
|
||
|
|
el.destroy = function () {
|
||
|
|
var _a, _b;
|
||
|
|
(_b = (_a = el.focusBorder) === null || _a === void 0 ? void 0 : _a.destroy) === null || _b === void 0 ? void 0 : _b.call(_a);
|
||
|
|
return origDestroy.apply(el, arguments);
|
||
|
|
};
|
||
|
|
el.focusBorderDestroyHook = origDestroy;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Remove hook from SVG element added by addDestroyFocusBorderHook, if
|
||
|
|
* existing.
|
||
|
|
*
|
||
|
|
* @param el Element to remove destroy hook from
|
||
|
|
*/
|
||
|
|
function removeDestroyFocusBorderHook(el) {
|
||
|
|
if (!el.focusBorderDestroyHook) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
el.destroy = el.focusBorderDestroyHook;
|
||
|
|
delete el.focusBorderDestroyHook;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Add hooks to update the focus border of an element when the element
|
||
|
|
* size/position is updated, unless already added.
|
||
|
|
*
|
||
|
|
* @param el Element to add update hooks to
|
||
|
|
* @param updateParams Parameters to pass through to addFocusBorder when updating.
|
||
|
|
*/
|
||
|
|
function addUpdateFocusBorderHooks(el) {
|
||
|
|
var updateParams = [];
|
||
|
|
for (var _i = 1; _i < arguments.length; _i++) {
|
||
|
|
updateParams[_i - 1] = arguments[_i];
|
||
|
|
}
|
||
|
|
if (el.focusBorderUpdateHooks) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
el.focusBorderUpdateHooks = {};
|
||
|
|
svgElementBorderUpdateTriggers.forEach(function (trigger) {
|
||
|
|
var setterKey = trigger + 'Setter';
|
||
|
|
var origSetter = el[setterKey] || el._defaultSetter;
|
||
|
|
el.focusBorderUpdateHooks[setterKey] = origSetter;
|
||
|
|
el[setterKey] = function () {
|
||
|
|
var ret = origSetter.apply(el, arguments);
|
||
|
|
el.addFocusBorder.apply(el, updateParams);
|
||
|
|
return ret;
|
||
|
|
};
|
||
|
|
});
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Remove hooks from SVG element added by addUpdateFocusBorderHooks, if
|
||
|
|
* existing.
|
||
|
|
*
|
||
|
|
* @param el Element to remove update hooks from
|
||
|
|
*/
|
||
|
|
function removeUpdateFocusBorderHooks(el) {
|
||
|
|
if (!el.focusBorderUpdateHooks) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
Object.keys(el.focusBorderUpdateHooks).forEach(function (setterKey) {
|
||
|
|
var origSetter = el.focusBorderUpdateHooks[setterKey];
|
||
|
|
if (origSetter === el._defaultSetter) {
|
||
|
|
delete el[setterKey];
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
el[setterKey] = origSetter;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
delete el.focusBorderUpdateHooks;
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* Add focus border functionality to SVGElements. Draws a new rect on top of
|
||
|
|
* element around its bounding box. This is used by multiple components.
|
||
|
|
*/
|
||
|
|
extend(H.SVGElement.prototype, {
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.SVGElement#addFocusBorder
|
||
|
|
*
|
||
|
|
* @param {number} margin
|
||
|
|
*
|
||
|
|
* @param {Highcharts.CSSObject} style
|
||
|
|
*/
|
||
|
|
addFocusBorder: function (margin, style) {
|
||
|
|
// Allow updating by just adding new border
|
||
|
|
if (this.focusBorder) {
|
||
|
|
this.removeFocusBorder();
|
||
|
|
}
|
||
|
|
// Add the border rect
|
||
|
|
var bb = this.getBBox(), pad = pick(margin, 3);
|
||
|
|
bb.x += this.translateX ? this.translateX : 0;
|
||
|
|
bb.y += this.translateY ? this.translateY : 0;
|
||
|
|
var borderPosX = bb.x - pad, borderPosY = bb.y - pad, borderWidth = bb.width + 2 * pad, borderHeight = bb.height + 2 * pad;
|
||
|
|
// For text elements, apply x and y offset, #11397.
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @function
|
||
|
|
*
|
||
|
|
* @param {Highcharts.SVGElement} text
|
||
|
|
*
|
||
|
|
* @return {TextAnchorCorrectionObject}
|
||
|
|
*/
|
||
|
|
function getTextAnchorCorrection(text) {
|
||
|
|
var posXCorrection = 0, posYCorrection = 0;
|
||
|
|
if (text.attr('text-anchor') === 'middle') {
|
||
|
|
posXCorrection = H.isFirefox && text.rotation ? 0.25 : 0.5;
|
||
|
|
posYCorrection = H.isFirefox && !text.rotation ? 0.75 : 0.5;
|
||
|
|
}
|
||
|
|
else if (!text.rotation) {
|
||
|
|
posYCorrection = 0.75;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
posXCorrection = 0.25;
|
||
|
|
}
|
||
|
|
return {
|
||
|
|
x: posXCorrection,
|
||
|
|
y: posYCorrection
|
||
|
|
};
|
||
|
|
}
|
||
|
|
if (this.element.nodeName === 'text' || this.isLabel) {
|
||
|
|
var isRotated = !!this.rotation, correction = !this.isLabel ? getTextAnchorCorrection(this) :
|
||
|
|
{
|
||
|
|
x: isRotated ? 1 : 0,
|
||
|
|
y: 0
|
||
|
|
};
|
||
|
|
borderPosX = +this.attr('x') - (bb.width * correction.x) - pad;
|
||
|
|
borderPosY = +this.attr('y') - (bb.height * correction.y) - pad;
|
||
|
|
if (this.isLabel && isRotated) {
|
||
|
|
var temp = borderWidth;
|
||
|
|
borderWidth = borderHeight;
|
||
|
|
borderHeight = temp;
|
||
|
|
borderPosX = +this.attr('x') - (bb.height * correction.x) - pad;
|
||
|
|
borderPosY = +this.attr('y') - (bb.width * correction.y) - pad;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
this.focusBorder = this.renderer.rect(borderPosX, borderPosY, borderWidth, borderHeight, parseInt((style && style.borderRadius || 0).toString(), 10))
|
||
|
|
.addClass('highcharts-focus-border')
|
||
|
|
.attr({
|
||
|
|
zIndex: 99
|
||
|
|
})
|
||
|
|
.add(this.parentGroup);
|
||
|
|
if (!this.renderer.styledMode) {
|
||
|
|
this.focusBorder.attr({
|
||
|
|
stroke: style && style.stroke,
|
||
|
|
'stroke-width': style && style.strokeWidth
|
||
|
|
});
|
||
|
|
}
|
||
|
|
addUpdateFocusBorderHooks(this, margin, style);
|
||
|
|
addDestroyFocusBorderHook(this);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.SVGElement#removeFocusBorder
|
||
|
|
*/
|
||
|
|
removeFocusBorder: function () {
|
||
|
|
removeUpdateFocusBorderHooks(this);
|
||
|
|
removeDestroyFocusBorderHook(this);
|
||
|
|
if (this.focusBorder) {
|
||
|
|
this.focusBorder.destroy();
|
||
|
|
delete this.focusBorder;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
/**
|
||
|
|
* Redraws the focus border on the currently focused element.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#renderFocusBorder
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.renderFocusBorder = function () {
|
||
|
|
var focusElement = this.focusElement, focusBorderOptions = this.options.accessibility.keyboardNavigation.focusBorder;
|
||
|
|
if (focusElement) {
|
||
|
|
focusElement.removeFocusBorder();
|
||
|
|
if (focusBorderOptions.enabled) {
|
||
|
|
focusElement.addFocusBorder(focusBorderOptions.margin, {
|
||
|
|
stroke: focusBorderOptions.style.color,
|
||
|
|
strokeWidth: focusBorderOptions.style.lineWidth,
|
||
|
|
borderRadius: focusBorderOptions.style.borderRadius
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* Set chart's focus to an SVGElement. Calls focus() on it, and draws the focus
|
||
|
|
* border. This is used by multiple components.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @function Highcharts.Chart#setFocusToElement
|
||
|
|
*
|
||
|
|
* @param {Highcharts.SVGElement} svgElement
|
||
|
|
* Element to draw the border around.
|
||
|
|
*
|
||
|
|
* @param {SVGDOMElement|HTMLDOMElement} [focusElement]
|
||
|
|
* If supplied, it draws the border around svgElement and sets the focus
|
||
|
|
* to focusElement.
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.setFocusToElement = function (svgElement, focusElement) {
|
||
|
|
var focusBorderOptions = this.options.accessibility.keyboardNavigation.focusBorder, browserFocusElement = focusElement || svgElement.element;
|
||
|
|
// Set browser focus if possible
|
||
|
|
if (browserFocusElement &&
|
||
|
|
browserFocusElement.focus) {
|
||
|
|
// If there is no focusin-listener, add one to work around Edge issue
|
||
|
|
// where Narrator is not reading out points despite calling focus().
|
||
|
|
if (!(browserFocusElement.hcEvents &&
|
||
|
|
browserFocusElement.hcEvents.focusin)) {
|
||
|
|
addEvent(browserFocusElement, 'focusin', function () { });
|
||
|
|
}
|
||
|
|
browserFocusElement.focus();
|
||
|
|
// Hide default focus ring
|
||
|
|
if (focusBorderOptions.hideBrowserFocusOutline) {
|
||
|
|
browserFocusElement.style.outline = 'none';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.focusElement) {
|
||
|
|
this.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
this.focusElement = svgElement;
|
||
|
|
this.renderFocusBorder();
|
||
|
|
};
|
||
|
|
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'modules/accessibility/accessibility.js', [_modules['modules/accessibility/utils/chartUtilities.js'], _modules['parts/Globals.js'], _modules['modules/accessibility/KeyboardNavigationHandler.js'], _modules['parts/Point.js'], _modules['parts/Utilities.js'], _modules['modules/accessibility/AccessibilityComponent.js'], _modules['modules/accessibility/KeyboardNavigation.js'], _modules['modules/accessibility/components/LegendComponent.js'], _modules['modules/accessibility/components/MenuComponent.js'], _modules['modules/accessibility/components/SeriesComponent/SeriesComponent.js'], _modules['modules/accessibility/components/ZoomComponent.js'], _modules['modules/accessibility/components/RangeSelectorComponent.js'], _modules['modules/accessibility/components/InfoRegionsComponent.js'], _modules['modules/accessibility/components/ContainerComponent.js'], _modules['modules/accessibility/high-contrast-mode.js'], _modules['modules/accessibility/high-contrast-theme.js'], _modules['modules/accessibility/options/options.js'], _modules['modules/accessibility/options/langOptions.js'], _modules['modules/accessibility/options/deprecatedOptions.js']], function (ChartUtilities, H, KeyboardNavigationHandler, Point, U, AccessibilityComponent, KeyboardNavigation, LegendComponent, MenuComponent, SeriesComponent, ZoomComponent, RangeSelectorComponent, InfoRegionsComponent, ContainerComponent, whcm, highContrastTheme, defaultOptions, defaultLangOptions, copyDeprecatedOptions) {
|
||
|
|
/* *
|
||
|
|
*
|
||
|
|
* (c) 2009-2020 Øystein Moseng
|
||
|
|
*
|
||
|
|
* Accessibility module for Highcharts
|
||
|
|
*
|
||
|
|
* License: www.highcharts.com/license
|
||
|
|
*
|
||
|
|
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||
|
|
*
|
||
|
|
* */
|
||
|
|
var addEvent = U.addEvent, extend = U.extend, fireEvent = U.fireEvent, merge = U.merge;
|
||
|
|
var doc = H.win.document;
|
||
|
|
// Add default options
|
||
|
|
merge(true, H.defaultOptions, defaultOptions, {
|
||
|
|
accessibility: {
|
||
|
|
highContrastTheme: highContrastTheme
|
||
|
|
},
|
||
|
|
lang: defaultLangOptions
|
||
|
|
});
|
||
|
|
// Expose functionality on Highcharts namespace
|
||
|
|
H.A11yChartUtilities = ChartUtilities;
|
||
|
|
H.KeyboardNavigationHandler = KeyboardNavigationHandler;
|
||
|
|
H.AccessibilityComponent = AccessibilityComponent;
|
||
|
|
/* eslint-disable no-invalid-this, valid-jsdoc */
|
||
|
|
/**
|
||
|
|
* The Accessibility class
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @requires module:modules/accessibility
|
||
|
|
*
|
||
|
|
* @class
|
||
|
|
* @name Highcharts.Accessibility
|
||
|
|
*
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* Chart object
|
||
|
|
*/
|
||
|
|
function Accessibility(chart) {
|
||
|
|
this.init(chart);
|
||
|
|
}
|
||
|
|
Accessibility.prototype = {
|
||
|
|
/**
|
||
|
|
* Initialize the accessibility class
|
||
|
|
* @private
|
||
|
|
* @param {Highcharts.Chart} chart
|
||
|
|
* Chart object
|
||
|
|
*/
|
||
|
|
init: function (chart) {
|
||
|
|
this.chart = chart;
|
||
|
|
// Abort on old browsers
|
||
|
|
if (!doc.addEventListener || !chart.renderer.isSVG) {
|
||
|
|
chart.renderTo.setAttribute('aria-hidden', true);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// Copy over any deprecated options that are used. We could do this on
|
||
|
|
// every update, but it is probably not needed.
|
||
|
|
copyDeprecatedOptions(chart);
|
||
|
|
this.initComponents();
|
||
|
|
this.keyboardNavigation = new KeyboardNavigation(chart, this.components);
|
||
|
|
this.update();
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
initComponents: function () {
|
||
|
|
var chart = this.chart, a11yOptions = chart.options.accessibility;
|
||
|
|
this.components = {
|
||
|
|
container: new ContainerComponent(),
|
||
|
|
infoRegions: new InfoRegionsComponent(),
|
||
|
|
legend: new LegendComponent(),
|
||
|
|
chartMenu: new MenuComponent(),
|
||
|
|
rangeSelector: new RangeSelectorComponent(),
|
||
|
|
series: new SeriesComponent(),
|
||
|
|
zoom: new ZoomComponent()
|
||
|
|
};
|
||
|
|
if (a11yOptions.customComponents) {
|
||
|
|
extend(this.components, a11yOptions.customComponents);
|
||
|
|
}
|
||
|
|
var components = this.components;
|
||
|
|
this.getComponentOrder().forEach(function (componentName) {
|
||
|
|
components[componentName].initBase(chart);
|
||
|
|
components[componentName].init();
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Get order to update components in.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
getComponentOrder: function () {
|
||
|
|
if (!this.components) {
|
||
|
|
return []; // For zombie accessibility object on old browsers
|
||
|
|
}
|
||
|
|
if (!this.components.series) {
|
||
|
|
return Object.keys(this.components);
|
||
|
|
}
|
||
|
|
var componentsExceptSeries = Object.keys(this.components)
|
||
|
|
.filter(function (c) { return c !== 'series'; });
|
||
|
|
// Update series first, so that other components can read accessibility
|
||
|
|
// info on points.
|
||
|
|
return ['series'].concat(componentsExceptSeries);
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Update all components.
|
||
|
|
*/
|
||
|
|
update: function () {
|
||
|
|
var components = this.components, chart = this.chart, a11yOptions = chart.options.accessibility;
|
||
|
|
fireEvent(chart, 'beforeA11yUpdate');
|
||
|
|
// Update the chart type list as this is used by multiple modules
|
||
|
|
chart.types = this.getChartTypes();
|
||
|
|
// Update markup
|
||
|
|
this.getComponentOrder().forEach(function (componentName) {
|
||
|
|
components[componentName].onChartUpdate();
|
||
|
|
fireEvent(chart, 'afterA11yComponentUpdate', {
|
||
|
|
name: componentName,
|
||
|
|
component: components[componentName]
|
||
|
|
});
|
||
|
|
});
|
||
|
|
// Update keyboard navigation
|
||
|
|
this.keyboardNavigation.update(a11yOptions.keyboardNavigation.order);
|
||
|
|
// Handle high contrast mode
|
||
|
|
if (!chart.highContrastModeActive && // Only do this once
|
||
|
|
whcm.isHighContrastModeActive()) {
|
||
|
|
whcm.setHighContrastTheme(chart);
|
||
|
|
}
|
||
|
|
fireEvent(chart, 'afterA11yUpdate', {
|
||
|
|
accessibility: this
|
||
|
|
});
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Destroy all elements.
|
||
|
|
*/
|
||
|
|
destroy: function () {
|
||
|
|
var chart = this.chart || {};
|
||
|
|
// Destroy components
|
||
|
|
var components = this.components;
|
||
|
|
Object.keys(components).forEach(function (componentName) {
|
||
|
|
components[componentName].destroy();
|
||
|
|
components[componentName].destroyBase();
|
||
|
|
});
|
||
|
|
// Kill keyboard nav
|
||
|
|
if (this.keyboardNavigation) {
|
||
|
|
this.keyboardNavigation.destroy();
|
||
|
|
}
|
||
|
|
// Hide container from screen readers if it exists
|
||
|
|
if (chart.renderTo) {
|
||
|
|
chart.renderTo.setAttribute('aria-hidden', true);
|
||
|
|
}
|
||
|
|
// Remove focus border if it exists
|
||
|
|
if (chart.focusElement) {
|
||
|
|
chart.focusElement.removeFocusBorder();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
/**
|
||
|
|
* Return a list of the types of series we have in the chart.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
getChartTypes: function () {
|
||
|
|
var types = {};
|
||
|
|
this.chart.series.forEach(function (series) {
|
||
|
|
types[series.type] = 1;
|
||
|
|
});
|
||
|
|
return Object.keys(types);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
/**
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
H.Chart.prototype.updateA11yEnabled = function () {
|
||
|
|
var a11y = this.accessibility, accessibilityOptions = this.options.accessibility;
|
||
|
|
if (accessibilityOptions && accessibilityOptions.enabled) {
|
||
|
|
if (a11y) {
|
||
|
|
a11y.update();
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
this.accessibility = a11y = new Accessibility(this);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (a11y) {
|
||
|
|
// Destroy if after update we have a11y and it is disabled
|
||
|
|
if (a11y.destroy) {
|
||
|
|
a11y.destroy();
|
||
|
|
}
|
||
|
|
delete this.accessibility;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
// Just hide container
|
||
|
|
this.renderTo.setAttribute('aria-hidden', true);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// Handle updates to the module and send render updates to components
|
||
|
|
addEvent(H.Chart, 'render', function (e) {
|
||
|
|
// Update/destroy
|
||
|
|
if (this.a11yDirty && this.renderTo) {
|
||
|
|
delete this.a11yDirty;
|
||
|
|
this.updateA11yEnabled();
|
||
|
|
}
|
||
|
|
var a11y = this.accessibility;
|
||
|
|
if (a11y) {
|
||
|
|
a11y.getComponentOrder().forEach(function (componentName) {
|
||
|
|
a11y.components[componentName].onChartRender();
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
// Update with chart/series/point updates
|
||
|
|
addEvent(H.Chart, 'update', function (e) {
|
||
|
|
// Merge new options
|
||
|
|
var newOptions = e.options.accessibility;
|
||
|
|
if (newOptions) {
|
||
|
|
// Handle custom component updating specifically
|
||
|
|
if (newOptions.customComponents) {
|
||
|
|
this.options.accessibility.customComponents =
|
||
|
|
newOptions.customComponents;
|
||
|
|
delete newOptions.customComponents;
|
||
|
|
}
|
||
|
|
merge(true, this.options.accessibility, newOptions);
|
||
|
|
// Recreate from scratch
|
||
|
|
if (this.accessibility && this.accessibility.destroy) {
|
||
|
|
this.accessibility.destroy();
|
||
|
|
delete this.accessibility;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// Mark dirty for update
|
||
|
|
this.a11yDirty = true;
|
||
|
|
});
|
||
|
|
// Mark dirty for update
|
||
|
|
addEvent(Point, 'update', function () {
|
||
|
|
if (this.series.chart.accessibility) {
|
||
|
|
this.series.chart.a11yDirty = true;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
['addSeries', 'init'].forEach(function (event) {
|
||
|
|
addEvent(H.Chart, event, function () {
|
||
|
|
this.a11yDirty = true;
|
||
|
|
});
|
||
|
|
});
|
||
|
|
['update', 'updatedData', 'remove'].forEach(function (event) {
|
||
|
|
addEvent(H.Series, event, function () {
|
||
|
|
if (this.chart.accessibility) {
|
||
|
|
this.chart.a11yDirty = true;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
// Direct updates (events happen after render)
|
||
|
|
[
|
||
|
|
'afterDrilldown', 'drillupall'
|
||
|
|
].forEach(function (event) {
|
||
|
|
addEvent(H.Chart, event, function () {
|
||
|
|
if (this.accessibility) {
|
||
|
|
this.accessibility.update();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
// Destroy with chart
|
||
|
|
addEvent(H.Chart, 'destroy', function () {
|
||
|
|
if (this.accessibility) {
|
||
|
|
this.accessibility.destroy();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
});
|
||
|
|
_registerModule(_modules, 'masters/modules/accessibility.src.js', [], function () {
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
});
|
||
|
|
}));
|