index.js

/**
 * Namespace for aria-related utilities.
 * @namespace commons.aria
 * @memberof axe
 */
const aria = (commons.aria = {});
const lookupTable = (aria.lookupTable = {});

const isNull = value => value === null;
const isNotNull = value => value !== null;

lookupTable.attributes = {
	'aria-activedescendant': {
		type: 'idref',
		allowEmpty: true,
		unsupported: false
	},
	'aria-atomic': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-autocomplete': {
		type: 'nmtoken',
		values: ['inline', 'list', 'both', 'none'],
		unsupported: false
	},
	'aria-busy': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-checked': {
		type: 'nmtoken',
		values: ['true', 'false', 'mixed', 'undefined'],
		unsupported: false
	},
	'aria-colcount': {
		type: 'int',
		unsupported: false
	},
	'aria-colindex': {
		type: 'int',
		unsupported: false
	},
	'aria-colspan': {
		type: 'int',
		unsupported: false
	},
	'aria-controls': {
		type: 'idrefs',
		allowEmpty: true,
		unsupported: false
	},
	'aria-current': {
		type: 'nmtoken',
		allowEmpty: true,
		values: ['page', 'step', 'location', 'date', 'time', 'true', 'false'],
		unsupported: false
	},
	'aria-describedby': {
		type: 'idrefs',
		allowEmpty: true,
		unsupported: false
	},
	'aria-describedat': {
		unsupported: true,
		unstandardized: true
	},
	'aria-details': {
		type: 'idref',
		allowEmpty: true,
		unsupported: false
	},
	'aria-disabled': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-dropeffect': {
		type: 'nmtokens',
		values: ['copy', 'move', 'reference', 'execute', 'popup', 'none'],
		unsupported: false
	},
	'aria-errormessage': {
		type: 'idref',
		allowEmpty: true,
		unsupported: false
	},
	'aria-expanded': {
		type: 'nmtoken',
		values: ['true', 'false', 'undefined'],
		unsupported: false
	},
	'aria-flowto': {
		type: 'idrefs',
		allowEmpty: true,
		unsupported: false
	},
	'aria-grabbed': {
		type: 'nmtoken',
		values: ['true', 'false', 'undefined'],
		unsupported: false
	},
	'aria-haspopup': {
		type: 'nmtoken',
		allowEmpty: true,
		values: ['true', 'false', 'menu', 'listbox', 'tree', 'grid', 'dialog'],
		unsupported: false
	},
	'aria-hidden': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-invalid': {
		type: 'nmtoken',
		allowEmpty: true,
		values: ['true', 'false', 'spelling', 'grammar'],
		unsupported: false
	},
	'aria-keyshortcuts': {
		type: 'string',
		allowEmpty: true,
		unsupported: false
	},
	'aria-label': {
		type: 'string',
		allowEmpty: true,
		unsupported: false
	},
	'aria-labelledby': {
		type: 'idrefs',
		allowEmpty: true,
		unsupported: false
	},
	'aria-level': {
		type: 'int',
		unsupported: false
	},
	'aria-live': {
		type: 'nmtoken',
		values: ['off', 'polite', 'assertive'],
		unsupported: false
	},
	'aria-modal': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-multiline': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-multiselectable': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-orientation': {
		type: 'nmtoken',
		values: ['horizontal', 'vertical'],
		unsupported: false
	},
	'aria-owns': {
		type: 'idrefs',
		allowEmpty: true,
		unsupported: false
	},
	'aria-placeholder': {
		type: 'string',
		allowEmpty: true,
		unsupported: false
	},
	'aria-posinset': {
		type: 'int',
		unsupported: false
	},
	'aria-pressed': {
		type: 'nmtoken',
		values: ['true', 'false', 'mixed', 'undefined'],
		unsupported: false
	},
	'aria-readonly': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-relevant': {
		type: 'nmtokens',
		values: ['additions', 'removals', 'text', 'all'],
		unsupported: false
	},
	'aria-required': {
		type: 'boolean',
		values: ['true', 'false'],
		unsupported: false
	},
	'aria-roledescription': {
		type: 'string',
		allowEmpty: true,
		unsupported: false
	},
	'aria-rowcount': {
		type: 'int',
		unsupported: false
	},
	'aria-rowindex': {
		type: 'int',
		unsupported: false
	},
	'aria-rowspan': {
		type: 'int',
		unsupported: false
	},
	'aria-selected': {
		type: 'nmtoken',
		values: ['true', 'false', 'undefined'],
		unsupported: false
	},
	'aria-setsize': {
		type: 'int',
		unsupported: false
	},
	'aria-sort': {
		type: 'nmtoken',
		values: ['ascending', 'descending', 'other', 'none'],
		unsupported: false
	},
	'aria-valuemax': {
		type: 'decimal',
		unsupported: false
	},
	'aria-valuemin': {
		type: 'decimal',
		unsupported: false
	},
	'aria-valuenow': {
		type: 'decimal',
		unsupported: false
	},
	'aria-valuetext': {
		type: 'string',
		unsupported: false
	}
};

lookupTable.globalAttributes = [
	'aria-atomic',
	'aria-busy',
	'aria-controls',
	'aria-current',
	'aria-describedby',
	'aria-details',
	'aria-disabled',
	'aria-dropeffect',
	'aria-flowto',
	'aria-grabbed',
	'aria-haspopup',
	'aria-hidden',
	'aria-invalid',
	'aria-keyshortcuts',
	'aria-label',
	'aria-labelledby',
	'aria-live',
	'aria-owns',
	'aria-relevant',
	'aria-roledescription'
];

lookupTable.role = {
	// valid roles below
	alert: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	alertdialog: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-modal', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['dialog', 'section']
	},
	application: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: [
			'article',
			'audio',
			'embed',
			'iframe',
			'object',
			'section',
			'svg',
			'video'
		]
	},
	article: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-expanded',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['article'],
		unsupported: false
	},
	banner: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['header'],
		unsupported: false,
		allowedElements: ['section']
	},
	button: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-pressed', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: [
			'button',
			'input[type="button"]',
			'input[type="image"]',
			'input[type="reset"]',
			'input[type="submit"]',
			'summary'
		],
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	cell: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-colindex',
				'aria-colspan',
				'aria-rowindex',
				'aria-rowspan',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['row'],
		implicit: ['td', 'th'],
		unsupported: false
	},
	checkbox: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-checked',
				'aria-required',
				'aria-readonly',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: ['input[type="checkbox"]'],
		unsupported: false,
		allowedElements: ['button']
	},
	columnheader: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-colindex',
				'aria-colspan',
				'aria-expanded',
				'aria-rowindex',
				'aria-rowspan',
				'aria-required',
				'aria-readonly',
				'aria-selected',
				'aria-sort',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['row'],
		implicit: ['th'],
		unsupported: false
	},
	combobox: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-autocomplete',
				'aria-required',
				'aria-activedescendant',
				'aria-orientation',
				'aria-errormessage'
			],
			required: ['aria-expanded']
		},
		owned: {
			all: ['listbox', 'tree', 'grid', 'dialog', 'textbox']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'input',
				properties: {
					type: ['text', 'search', 'tel', 'url', 'email']
				}
			}
		]
	},
	command: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	},
	complementary: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['aside'],
		unsupported: false,
		allowedElements: ['section']
	},
	composite: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	},
	contentinfo: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['footer'],
		unsupported: false,
		allowedElements: ['section']
	},
	definition: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['dd', 'dfn'],
		unsupported: false
	},
	dialog: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-modal', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['dialog'],
		unsupported: false,
		allowedElements: ['section']
	},
	directory: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	document: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['body'],
		unsupported: false,
		allowedElements: ['article', 'embed', 'iframe', 'object', 'section', 'svg']
	},
	'doc-abstract': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-acknowledgments': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-afterword': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-appendix': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-backlink': {
		type: 'link',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	'doc-biblioentry': {
		type: 'listitem',
		attributes: {
			allowed: [
				'aria-expanded',
				'aria-level',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: ['doc-bibliography'],
		unsupported: false,
		allowedElements: ['li']
	},
	'doc-bibliography': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: {
			one: ['doc-biblioentry']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-biblioref': {
		type: 'link',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	'doc-chapter': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-colophon': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-conclusion': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-cover': {
		type: 'img',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false
	},
	'doc-credit': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-credits': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-dedication': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-endnote': {
		type: 'listitem',
		attributes: {
			allowed: [
				'aria-expanded',
				'aria-level',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		namefrom: ['author'],
		context: ['doc-endnotes'],
		unsupported: false,
		allowedElements: ['li']
	},
	'doc-endnotes': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: {
			one: ['doc-endnote']
		},
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-epigraph': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false
	},
	'doc-epilogue': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-errata': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-example': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['aside', 'section']
	},
	'doc-footnote': {
		type: 'section',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['aside', 'footer', 'header']
	},
	'doc-foreword': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-glossary': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: ['term', 'definition'],
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['dl']
	},
	'doc-glossref': {
		type: 'link',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	'doc-index': {
		type: 'navigation',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['nav', 'section']
	},
	'doc-introduction': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-noteref': {
		type: 'link',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	'doc-notice': {
		type: 'note',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-pagebreak': {
		type: 'separator',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['hr']
	},
	'doc-pagelist': {
		type: 'navigation',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['nav', 'section']
	},
	'doc-part': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-preface': {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-prologue': {
		type: 'landmark',
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			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	'doc-pullquote': {
		type: 'none',
		attributes: {
			allowed: ['aria-expanded']
		},
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		namefrom: ['author'],
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		unsupported: false,
		allowedElements: ['aside', 'section']
	},
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		type: 'section',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
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		type: 'sectionhead',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: {
			nodeName: ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']
		}
	},
	'doc-tip': {
		type: 'note',
		attributes: {
			allowed: ['aria-expanded']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['aside']
	},
	'doc-toc': {
		type: 'navigation',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		namefrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['nav', 'section']
	},
	feed: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
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			one: ['article']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['article', 'aside', 'section']
	},
	figure: {
		type: 'structure',
		unsupported: false
	},
	form: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['form'],
		unsupported: false
	},
	grid: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-expanded',
				'aria-colcount',
				'aria-level',
				'aria-multiselectable',
				'aria-readonly',
				'aria-rowcount',
				'aria-errormessage'
			]
		},
		owned: {
			one: ['rowgroup', 'row']
		},
		nameFrom: ['author'],
		context: null,
		implicit: ['table'],
		unsupported: false
	},
	gridcell: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-colindex',
				'aria-colspan',
				'aria-expanded',
				'aria-rowindex',
				'aria-rowspan',
				'aria-selected',
				'aria-readonly',
				'aria-required',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['row'],
		implicit: ['td', 'th'],
		unsupported: false
	},
	group: {
		type: 'structure',
		attributes: {
			allowed: ['aria-activedescendant', 'aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['details', 'optgroup'],
		unsupported: false,
		allowedElements: [
			'dl',
			'figcaption',
			'fieldset',
			'figure',
			'footer',
			'header',
			'ol',
			'ul'
		]
	},
	heading: {
		type: 'structure',
		attributes: {
			required: ['aria-level'],
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: ['h1', 'h2', 'h3', 'h4', 'h5', 'h6'],
		unsupported: false
	},
	img: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['img'],
		unsupported: false,
		allowedElements: ['embed', 'iframe', 'object', 'svg']
	},
	input: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	},
	landmark: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	},
	link: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: ['a[href]'],
		unsupported: false,
		allowedElements: [
			'button',
			{
				nodeName: 'input',
				properties: {
					type: ['image', 'button']
				}
			}
		]
	},
	list: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: {
			all: ['listitem']
		},
		nameFrom: ['author'],
		context: null,
		implicit: ['ol', 'ul', 'dl'],
		unsupported: false
	},
	listbox: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-multiselectable',
				'aria-readonly',
				'aria-required',
				'aria-expanded',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			all: ['option']
		},
		nameFrom: ['author'],
		context: null,
		implicit: ['select'],
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	listitem: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-level',
				'aria-posinset',
				'aria-setsize',
				'aria-expanded',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['list'],
		implicit: ['li', 'dt'],
		unsupported: false
	},
	log: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	main: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['main'],
		unsupported: false,
		allowedElements: ['article', 'section']
	},
	marquee: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	math: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['math'],
		unsupported: false
	},
	menu: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-expanded',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			one: ['menuitem', 'menuitemradio', 'menuitemcheckbox']
		},
		nameFrom: ['author'],
		context: null,
		implicit: ['menu[type="context"]'],
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	menubar: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-expanded',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			one: ['menuitem', 'menuitemradio', 'menuitemcheckbox']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	menuitem: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-posinset',
				'aria-setsize',
				'aria-expanded',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['menu', 'menubar'],
		implicit: ['menuitem[type="command"]'],
		unsupported: false,
		allowedElements: [
			'button',
			'li',
			{
				nodeName: 'iput',
				properties: {
					type: ['image', 'button']
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	menuitemcheckbox: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-checked',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['menu', 'menubar'],
		implicit: ['menuitem[type="checkbox"]'],
		unsupported: false,
		allowedElements: [
			{
				nodeName: ['button', 'li']
			},
			{
				nodeName: 'input',
				properties: {
					type: ['checkbox', 'image', 'button']
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	menuitemradio: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-checked',
				'aria-selected',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['menu', 'menubar'],
		implicit: ['menuitem[type="radio"]'],
		unsupported: false,
		allowedElements: [
			{
				nodeName: ['button', 'li']
			},
			{
				nodeName: 'input',
				properties: {
					type: ['image', 'button', 'radio']
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	navigation: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['nav'],
		unsupported: false,
		allowedElements: ['section']
	},
	none: {
		type: 'structure',
		attributes: null,
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: [
					'article',
					'aside',
					'dl',
					'embed',
					'figcaption',
					'fieldset',
					'figure',
					'footer',
					'form',
					'h1',
					'h2',
					'h3',
					'h4',
					'h5',
					'h6',
					'header',
					'iframe',
					'li',
					'ol',
					'section',
					'ul'
				]
			},
			{
				nodeName: 'img',
				attributes: {
					alt: isNotNull
				}
			}
		]
	},
	note: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['aside']
	},
	option: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-selected',
				'aria-posinset',
				'aria-setsize',
				'aria-checked',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['listbox'],
		implicit: ['option'],
		unsupported: false,
		allowedElements: [
			{
				nodeName: ['button', 'li']
			},
			{
				nodeName: 'input',
				properties: {
					type: ['checkbox', 'button']
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	presentation: {
		type: 'structure',
		attributes: null,
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: [
			{
				nodeName: [
					'article',
					'aside',
					'dl',
					'embed',
					'figcaption',
					'fieldset',
					'figure',
					'footer',
					'form',
					'h1',
					'h2',
					'h3',
					'h4',
					'h5',
					'h6',
					'header',
					'iframe',
					'li',
					'ol',
					'section',
					'ul'
				]
			},
			{
				nodeName: 'img',
				attributes: {
					alt: isNotNull
				}
			}
		]
	},
	progressbar: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-valuetext',
				'aria-valuenow',
				'aria-valuemax',
				'aria-valuemin',
				'aria-expanded',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['progress'],
		unsupported: false
	},
	radio: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-selected',
				'aria-posinset',
				'aria-setsize',
				'aria-required',
				'aria-errormessage',
				'aria-checked'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: ['input[type="radio"]'],
		unsupported: false,
		allowedElements: [
			{
				nodeName: ['button', 'li']
			},
			{
				nodeName: 'input',
				properties: {
					type: ['image', 'button']
				}
			}
		]
	},
	radiogroup: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-required',
				'aria-expanded',
				'aria-readonly',
				'aria-errormessage'
			]
		},
		owned: {
			all: ['radio']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: {
			nodeName: ['ol', 'ul']
		}
	},
	range: {
		nameFrom: ['author'],
		type: 'abstract',
		// @marcysutton, @wilco
		// - there is no unsupported here (noticed when resolving conflicts) from PR - https://github.com/dequelabs/axe-core/pull/1064
		// - https://github.com/dequelabs/axe-core/pull/1064/files#diff-ec67bb6113bfd9a900ee27ecef942f74R1229
		// - adding unsupported flag (false)
		unsupported: false
	},
	region: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: [
			'section[aria-label]',
			'section[aria-labelledby]',
			'section[title]'
		],
		unsupported: false,
		allowedElements: {
			nodeName: ['article', 'aside']
		}
	},
	roletype: {
		type: 'abstract',
		unsupported: false
	},
	row: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-colindex',
				'aria-expanded',
				'aria-level',
				'aria-selected',
				'aria-rowindex',
				'aria-errormessage'
			]
		},
		owned: {
			one: ['cell', 'columnheader', 'rowheader', 'gridcell']
		},
		nameFrom: ['author', 'contents'],
		context: ['rowgroup', 'grid', 'treegrid', 'table'],
		implicit: ['tr'],
		unsupported: false
	},
	rowgroup: {
		type: 'structure',
		attributes: {
			allowed: ['aria-activedescendant', 'aria-expanded', 'aria-errormessage']
		},
		owned: {
			all: ['row']
		},
		nameFrom: ['author', 'contents'],
		context: ['grid', 'table', 'treegrid'],
		implicit: ['tbody', 'thead', 'tfoot'],
		unsupported: false
	},
	rowheader: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-colindex',
				'aria-colspan',
				'aria-expanded',
				'aria-rowindex',
				'aria-rowspan',
				'aria-required',
				'aria-readonly',
				'aria-selected',
				'aria-sort',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['row'],
		implicit: ['th'],
		unsupported: false
	},
	scrollbar: {
		type: 'widget',
		attributes: {
			required: ['aria-controls', 'aria-valuenow'],
			allowed: [
				'aria-valuetext',
				'aria-orientation',
				'aria-errormessage',
				'aria-valuemax',
				'aria-valuemin'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false
	},
	search: {
		type: 'landmark',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: {
			nodeName: ['aside', 'form', 'section']
		}
	},
	searchbox: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-autocomplete',
				'aria-multiline',
				'aria-readonly',
				'aria-required',
				'aria-placeholder',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['input[type="search"]'],
		unsupported: false,
		allowedElements: {
			nodeName: 'input',
			properties: {
				type: 'text'
			}
		}
	},
	section: {
		nameFrom: ['author', 'contents'],
		type: 'abstract',
		unsupported: false
	},
	sectionhead: {
		nameFrom: ['author', 'contents'],
		type: 'abstract',
		unsupported: false
	},
	select: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	},
	separator: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-expanded',
				'aria-orientation',
				'aria-valuenow',
				'aria-valuemax',
				'aria-valuemin',
				'aria-valuetext',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['hr'],
		unsupported: false,
		allowedElements: ['li']
	},
	slider: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-valuetext',
				'aria-orientation',
				'aria-readonly',
				'aria-errormessage',
				'aria-valuemax',
				'aria-valuemin'
			],
			required: ['aria-valuenow']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['input[type="range"]'],
		unsupported: false
	},
	spinbutton: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-valuetext',
				'aria-required',
				'aria-readonly',
				'aria-errormessage',
				'aria-valuemax',
				'aria-valuemin'
			],
			required: ['aria-valuenow']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['input[type="number"]'],
		unsupported: false,
		allowedElements: {
			nodeName: 'input',
			properties: {
				type: 'text'
			}
		}
	},
	status: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['output'],
		unsupported: false,
		allowedElements: ['section']
	},
	structure: {
		type: 'abstract',
		unsupported: false
	},
	switch: {
		type: 'widget',
		attributes: {
			allowed: ['aria-errormessage'],
			required: ['aria-checked']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		unsupported: false,
		allowedElements: [
			'button',
			{
				nodeName: 'input',
				properties: {
					type: ['checkbox', 'image', 'button']
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	tab: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-selected',
				'aria-expanded',
				'aria-setsize',
				'aria-posinset',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['tablist'],
		unsupported: false,
		allowedElements: [
			{
				nodeName: ['button', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'li']
			},
			{
				nodeName: 'input',
				properties: {
					type: 'button'
				}
			},
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	table: {
		type: 'structure',
		attributes: {
			allowed: ['aria-colcount', 'aria-rowcount', 'aria-errormessage']
		},
		owned: {
			one: ['rowgroup', 'row']
		},
		nameFrom: ['author'],
		context: null,
		implicit: ['table'],
		unsupported: false
	},
	tablist: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-expanded',
				'aria-level',
				'aria-multiselectable',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			all: ['tab']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	tabpanel: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['section']
	},
	term: {
		type: 'structure',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		implicit: ['dt'],
		unsupported: false
	},
	textbox: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-autocomplete',
				'aria-multiline',
				'aria-readonly',
				'aria-required',
				'aria-placeholder',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: [
			'input[type="text"]',
			'input[type="email"]',
			'input[type="password"]',
			'input[type="tel"]',
			'input[type="url"]',
			'input:not([type])',
			'textarea'
		],
		unsupported: false
	},
	timer: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		unsupported: false
	},
	toolbar: {
		type: 'structure',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-expanded',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author'],
		context: null,
		implicit: ['menu[type="toolbar"]'],
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	tooltip: {
		type: 'widget',
		attributes: {
			allowed: ['aria-expanded', 'aria-errormessage']
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: null,
		unsupported: false
	},
	tree: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-multiselectable',
				'aria-required',
				'aria-expanded',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			all: ['treeitem']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false,
		allowedElements: ['ol', 'ul']
	},
	treegrid: {
		type: 'composite',
		attributes: {
			allowed: [
				'aria-activedescendant',
				'aria-colcount',
				'aria-expanded',
				'aria-level',
				'aria-multiselectable',
				'aria-readonly',
				'aria-required',
				'aria-rowcount',
				'aria-orientation',
				'aria-errormessage'
			]
		},
		owned: {
			one: ['rowgroup', 'row']
		},
		nameFrom: ['author'],
		context: null,
		unsupported: false
	},
	treeitem: {
		type: 'widget',
		attributes: {
			allowed: [
				'aria-checked',
				'aria-selected',
				'aria-expanded',
				'aria-level',
				'aria-posinset',
				'aria-setsize',
				'aria-errormessage'
			]
		},
		owned: null,
		nameFrom: ['author', 'contents'],
		context: ['group', 'tree'],
		unsupported: false,
		allowedElements: [
			'li',
			{
				nodeName: 'a',
				attributes: {
					href: isNotNull
				}
			}
		]
	},
	widget: {
		type: 'abstract',
		unsupported: false
	},
	window: {
		nameFrom: ['author'],
		type: 'abstract',
		unsupported: false
	}
};

// Source: https://www.w3.org/TR/html-aria/
lookupTable.elementsAllowedNoRole = [
	{
		// Plain HTML nodes
		nodeName: [
			'base',
			'body',
			'caption',
			'col',
			'colgroup',
			'datalist',
			'dd',
			'details',
			'dt',
			'head',
			'html',
			'keygen',
			'label',
			'legend',
			'main',
			'map',
			'math',
			'meta',
			'meter',
			'noscript',
			'optgroup',
			'param',
			'picture',
			'progress',
			'script',
			'source',
			'style',
			'template',
			'textarea',
			'title',
			'track'
		]
	},
	{
		nodeName: 'area',
		attributes: {
			href: isNotNull
		}
	},
	{
		nodeName: 'input',
		properties: {
			type: [
				'color',
				'data',
				'datatime',
				'file',
				'hidden',
				'month',
				'number',
				'password',
				'range',
				'reset',
				'submit',
				'time',
				'week'
			]
		}
	},
	{
		nodeName: 'link',
		attributes: {
			href: isNotNull
		}
	},
	{
		nodeName: 'menu',
		attributes: {
			type: 'context'
		}
	},
	{
		nodeName: 'menuitem',
		attributes: {
			type: ['command', 'checkbox', 'radio']
		}
	},
	{
		nodeName: 'select',
		condition: node => {
			return Number(node.getAttribute('size')) > 1;
		},
		properties: {
			multiple: true
		}
	},
	// svg elements (below)
	{
		nodeName: [
			'clippath',
			'cursor',
			'defs',
			'desc',
			'feblend',
			'fecolormatrix',
			'fecomponenttransfer',
			'fecomposite',
			'feconvolvematrix',
			'fediffuselighting',
			'fedisplacementmap',
			'fedistantlight',
			'fedropshadow',
			'feflood',
			'fefunca',
			'fefuncb',
			'fefuncg',
			'fefuncr',
			'fegaussianblur',
			'feimage',
			'femerge',
			'femergenode',
			'femorphology',
			'feoffset',
			'fepointlight',
			'fespecularlighting',
			'fespotlight',
			'fetile',
			'feturbulence',
			'filter',
			'hatch',
			'hatchpath',
			'lineargradient',
			'marker',
			'mask',
			'meshgradient',
			'meshpatch',
			'meshrow',
			'metadata',
			'mpath',
			'pattern',
			'radialgradient',
			'solidcolor',
			'stop',
			'switch',
			'view'
		]
	}
];

// Source: https://www.w3.org/TR/html-aria/
lookupTable.elementsAllowedAnyRole = [
	{
		nodeName: 'a',
		attributes: {
			href: isNull
		}
	},
	{
		nodeName: 'img',
		attributes: {
			alt: isNull
		}
	},
	{
		nodeName: [
			'abbr',
			'address',
			'canvas',
			'div',
			'p',
			'pre',
			'blockquote',
			'ins',
			'del',
			'output',
			'span',
			'table',
			'tbody',
			'thead',
			'tfoot',
			'td',
			'em',
			'strong',
			'small',
			's',
			'cite',
			'q',
			'dfn',
			'abbr',
			'time',
			'code',
			'var',
			'samp',
			'kbd',
			'sub',
			'sup',
			'i',
			'b',
			'u',
			'mark',
			'ruby',
			'rt',
			'rp',
			'bdi',
			'bdo',
			'br',
			'wbr',
			'th',
			'tr'
		]
	}
];

lookupTable.evaluateRoleForElement = {
	A: ({ node, out }) => {
		if (node.namespaceURI === 'http://www.w3.org/2000/svg') {
			return true;
		}
		if (node.href.length) {
			return out;
		}
		return true;
	},
	AREA: ({ node }) => !node.href,
	BUTTON: ({ node, role, out }) => {
		if (node.getAttribute('type') === 'menu') {
			return role === 'menuitem';
		}
		return out;
	},
	IMG: ({ node, role, out }) => {
		switch (node.alt) {
			case null:
				return out;
			case '':
				return role === 'presentation' || role === 'none';
			default:
				return role !== 'presentation' && role !== 'none';
		}
	},
	INPUT: ({ node, role, out }) => {
		switch (node.type) {
			case 'button':
			case 'image':
				return out;
			case 'checkbox':
				if (role === 'button' && node.hasAttribute('aria-pressed')) {
					return true;
				}
				return out;
			case 'radio':
				return role === 'menuitemradio';
			case 'text':
				return (
					role === 'combobox' || role === 'searchbox' || role === 'spinbutton'
				);
			case 'tel':
			case 'url':
			case 'search':
			case 'email':
				return role === 'combobox';
			default:
				return false;
		}
	},
	LI: ({ node, out }) => {
		const hasImplicitListitemRole = axe.utils.matchesSelector(
			node,
			'ol li, ul li'
		);
		if (hasImplicitListitemRole) {
			return out;
		}
		return true;
	},
	MENU: ({ node }) => {
		if (node.getAttribute('type') === 'context') {
			return false;
		}
		return true;
	},
	OPTION: ({ node }) => {
		const withinOptionList = axe.utils.matchesSelector(
			node,
			'select > option, datalist > option, optgroup > option'
		);
		return !withinOptionList;
	},
	SELECT: ({ node, role }) =>
		!node.multiple && node.size <= 1 && role === 'menu',
	SVG: ({ node, out }) => {
		// if in svg context it all roles may be used
		if (
			node.parentNode &&
			node.parentNode.namespaceURI === 'http://www.w3.org/2000/svg'
		) {
			return true;
		}
		return out;
	}
};

/**
 * Reference -> https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/ARIA_Techniques#Widget_roles
 * The current lookupTable.role['widget'] widget, yeilds
 * ->
 * [
 * 	"alert", "alertdialog", "button", "checkbox", "dialog", "gridcell", "link", "log", "marquee", "menuitem", "menuitemcheckbox",
 * 	"menuitemradio", "option", "progressbar", "radio", "scrollbar", "searchbox", "slider", "spinbutton", "status", "switch", "tab", "tabpanel",
 * 	"textbox", "timer", "tooltip", "treeitem"
 * ]
 * There are some differences against specs, hence the below listing was made
 */
lookupTable.rolesOfType = {
	widget: [
		'button',
		'checkbox',
		'dialog',
		'gridcell',
		'link',
		'log',
		'marquee',
		'menuitem',
		'menuitemcheckbox',
		'menuitemradio',
		'option',
		'progressbar',
		'radio',
		'scrollbar',
		'slider',
		'spinbutton',
		'status',
		'switch',
		'tab',
		'tabpanel',
		'textbox',
		'timer',
		'tooltip',
		'tree',
		'treeitem'
	]
};