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node_modules/eslint-plugin-jsx-a11y/lib/rules/aria-activedescendant-has-tabindex.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+
+var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));
+
+var _ariaQuery = require("aria-query");
+
+var _jsxAstUtils = require("jsx-ast-utils");
+
+var _schemas = require("../util/schemas");
+
+var _getTabIndex = _interopRequireDefault(require("../util/getTabIndex"));
+
+var _isInteractiveElement = _interopRequireDefault(require("../util/isInteractiveElement"));
+
+/**
+ * @fileoverview Enforce elements with aria-activedescendant are tabbable.
+ * @author Jesse Beach <@jessebeach>
+ */
+// ----------------------------------------------------------------------------
+// Rule Definition
+// ----------------------------------------------------------------------------
+var errorMessage = 'An element that manages focus with `aria-activedescendant` must be tabbable';
+var schema = (0, _schemas.generateObjSchema)();
+var domElements = (0, _toConsumableArray2["default"])(_ariaQuery.dom.keys());
+module.exports = {
+  meta: {
+    docs: {
+      url: 'https://github.com/evcohen/eslint-plugin-jsx-a11y/tree/master/docs/rules/aria-activedescendant-has-tabindex.md'
+    },
+    schema: [schema]
+  },
+  create: function create(context) {
+    return {
+      JSXOpeningElement: function JSXOpeningElement(node) {
+        var attributes = node.attributes;
+
+        if ((0, _jsxAstUtils.getProp)(attributes, 'aria-activedescendant') === undefined) {
+          return;
+        }
+
+        var type = (0, _jsxAstUtils.elementType)(node); // Do not test higher level JSX components, as we do not know what
+        // low-level DOM element this maps to.
+
+        if (domElements.indexOf(type) === -1) {
+          return;
+        }
+
+        var tabIndex = (0, _getTabIndex["default"])((0, _jsxAstUtils.getProp)(attributes, 'tabIndex')); // If this is an interactive element, tabIndex must be either left
+        // unspecified allowing the inherent tabIndex to obtain or it must be
+        // zero (allowing for positive, even though that is not ideal). It cannot
+        // be given a negative value.
+
+        if ((0, _isInteractiveElement["default"])(type, attributes) && (tabIndex === undefined || tabIndex >= 0)) {
+          return;
+        }
+
+        if (tabIndex >= 0) {
+          return;
+        }
+
+        context.report({
+          node,
+          message: errorMessage
+        });
+      }
+    };
+  }
+};