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