68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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var _ariaQuery = require('aria-query');
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var _jsxAstUtils = require('jsx-ast-utils');
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var _arrayIncludes = require('array-includes');
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var _arrayIncludes2 = _interopRequireDefault(_arrayIncludes);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
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var roles = [].concat(_toConsumableArray(_ariaQuery.roles.keys()));
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var interactiveRoles = roles.filter(function (name) {
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return !_ariaQuery.roles.get(name).abstract;
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}).filter(function (name) {
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return _ariaQuery.roles.get(name).superClass.some(function (klasses) {
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return (0, _arrayIncludes2.default)(klasses, 'widget');
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});
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});
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// 'toolbar' does not descend from widget, but it does support
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// aria-activedescendant, thus in practice we treat it as a widget.
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interactiveRoles.push('toolbar');
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/**
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* Returns boolean indicating whether the given element has a role
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* that is associated with an interactive component. Used when an element
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* has a dynamic handler on it and we need to discern whether or not
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* its intention is to be interacted with in the DOM.
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*
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* isInteractiveRole is a Logical Disjunction:
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* https://en.wikipedia.org/wiki/Logical_disjunction
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* The JSX element does not have a tagName or it has a tagName and a role
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* attribute with a value in the set of non-interactive roles.
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*/
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var isInteractiveRole = function isInteractiveRole(tagName, attributes) {
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var value = (0, _jsxAstUtils.getLiteralPropValue)((0, _jsxAstUtils.getProp)(attributes, 'role'));
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// If value is undefined, then the role attribute will be dropped in the DOM.
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// If value is null, then getLiteralAttributeValue is telling us that the
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// value isn't in the form of a literal
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if (value === undefined || value === null) {
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return false;
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}
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var isInteractive = false;
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var normalizedValues = String(value).toLowerCase().split(' ');
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var validRoles = normalizedValues.reduce(function (accumulator, name) {
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if ((0, _arrayIncludes2.default)(roles, name)) {
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accumulator.push(name);
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}
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return accumulator;
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}, []);
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if (validRoles.length > 0) {
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// The first role value is a series takes precedence.
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isInteractive = (0, _arrayIncludes2.default)(interactiveRoles, validRoles[0]);
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}
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return isInteractive;
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};
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exports.default = isInteractiveRole; |