add hw2

node_modules/@react-aria/focus/dist/useHasTabbableChild.module.js

@@ -0,0 +1,57 @@
+import {getFocusableTreeWalker as $9bf71ea28793e738$export$2d6ec8fc375ceafa} from "./FocusScope.module.js";
+import {useLayoutEffect as $hGAaG$useLayoutEffect} from "@react-aria/utils";
+import {useState as $hGAaG$useState} from "react";
+
+/*
+ * Copyright 2022 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */ 
+
+
+function $83013635b024ae3d$export$eac1895992b9f3d6(ref, options) {
+    let isDisabled = options === null || options === void 0 ? void 0 : options.isDisabled;
+    let [hasTabbableChild, setHasTabbableChild] = (0, $hGAaG$useState)(false);
+    (0, $hGAaG$useLayoutEffect)(()=>{
+        if ((ref === null || ref === void 0 ? void 0 : ref.current) && !isDisabled) {
+            let update = ()=>{
+                if (ref.current) {
+                    let walker = (0, $9bf71ea28793e738$export$2d6ec8fc375ceafa)(ref.current, {
+                        tabbable: true
+                    });
+                    setHasTabbableChild(!!walker.nextNode());
+                }
+            };
+            update();
+            // Update when new elements are inserted, or the tabIndex/disabled attribute updates.
+            let observer = new MutationObserver(update);
+            observer.observe(ref.current, {
+                subtree: true,
+                childList: true,
+                attributes: true,
+                attributeFilter: [
+                    'tabIndex',
+                    'disabled'
+                ]
+            });
+            return ()=>{
+                // Disconnect mutation observer when a React update occurs on the top-level component
+                // so we update synchronously after re-rendering. Otherwise React will emit act warnings
+                // in tests since mutation observers fire asynchronously. The mutation observer is necessary
+                // so we also update if a child component re-renders and adds/removes something tabbable.
+                observer.disconnect();
+            };
+        }
+    });
+    return isDisabled ? false : hasTabbableChild;
+}
+
+
+export {$83013635b024ae3d$export$eac1895992b9f3d6 as useHasTabbableChild};
+//# sourceMappingURL=useHasTabbableChild.module.js.map