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34 lines
765 B
34 lines
765 B
"use strict"; |
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports["default"] = getExplicitRole; |
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var _ariaQuery = require("aria-query"); |
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var _jsxAstUtils = require("jsx-ast-utils"); |
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/** |
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* Returns an element's computed role, which is |
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* |
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* 1. The valid value of its explicit role attribute; or |
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* 2. The implicit value of its tag. |
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*/ |
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function getExplicitRole(tag, attributes) { |
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var explicitRole = function toLowerCase(role) { |
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if (typeof role === 'string') { |
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return role.toLowerCase(); |
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} |
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return null; |
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}((0, _jsxAstUtils.getLiteralPropValue)((0, _jsxAstUtils.getProp)(attributes, 'role'))); |
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if (_ariaQuery.roles.has(explicitRole)) { |
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return explicitRole; |
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} |
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return null; |
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} |
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module.exports = exports.default; |