add hw2

node_modules/@react-aria/utils/dist/useLoadMoreSentinel.module.js

@@ -0,0 +1,54 @@
+import {getScrollParent as $62d8ded9296f3872$export$cfa2225e87938781} from "./getScrollParent.module.js";
+import {useEffectEvent as $8ae05eaa5c114e9c$export$7f54fc3180508a52} from "./useEffectEvent.module.js";
+import {useLayoutEffect as $f0a04ccd8dbdd83b$export$e5c5a5f917a5871c} from "./useLayoutEffect.module.js";
+import {useRef as $7FoZl$useRef} from "react";
+
+/*
+ * Copyright 2024 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 $a5fa973c1850dd36$export$ccaea96c28e8b9e7(props, ref) {
+    let { collection: collection, onLoadMore: onLoadMore, scrollOffset: scrollOffset = 1 } = props;
+    let sentinelObserver = (0, $7FoZl$useRef)(null);
+    let triggerLoadMore = (0, $8ae05eaa5c114e9c$export$7f54fc3180508a52)((entries)=>{
+        // Use "isIntersecting" over an equality check of 0 since it seems like there is cases where
+        // a intersection ratio of 0 can be reported when isIntersecting is actually true
+        for (let entry of entries)// Note that this will be called if the collection changes, even if onLoadMore was already called and is being processed.
+        // Up to user discretion as to how to handle these multiple onLoadMore calls
+        if (entry.isIntersecting && onLoadMore) onLoadMore();
+    });
+    (0, $f0a04ccd8dbdd83b$export$e5c5a5f917a5871c)(()=>{
+        if (ref.current) {
+            // Tear down and set up a new IntersectionObserver when the collection changes so that we can properly trigger additional loadMores if there is room for more items
+            // Need to do this tear down and set up since using a large rootMargin will mean the observer's callback isn't called even when scrolling the item into view beause its visibility hasn't actually changed
+            // https://codesandbox.io/p/sandbox/magical-swanson-dhgp89?file=%2Fsrc%2FApp.js%3A21%2C21
+            sentinelObserver.current = new IntersectionObserver(triggerLoadMore, {
+                root: (0, $62d8ded9296f3872$export$cfa2225e87938781)(ref === null || ref === void 0 ? void 0 : ref.current),
+                rootMargin: `0px ${100 * scrollOffset}% ${100 * scrollOffset}% ${100 * scrollOffset}%`
+            });
+            sentinelObserver.current.observe(ref.current);
+        }
+        return ()=>{
+            if (sentinelObserver.current) sentinelObserver.current.disconnect();
+        };
+    }, [
+        collection,
+        triggerLoadMore,
+        ref,
+        scrollOffset
+    ]);
+}
+
+
+export {$a5fa973c1850dd36$export$ccaea96c28e8b9e7 as useLoadMoreSentinel};
+//# sourceMappingURL=useLoadMoreSentinel.module.js.map