planning

node_modules/react-dnd/lib/hooks/useDragLayer.js

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+import { useEffect } from 'react';
+import { useDragDropManager } from './useDragDropManager';
+import { useCollector } from './useCollector';
+/**
+ * useDragLayer Hook
+ * @param collector The property collector
+ */
+export function useDragLayer(collect) {
+    const dragDropManager = useDragDropManager();
+    const monitor = dragDropManager.getMonitor();
+    const [collected, updateCollected] = useCollector(monitor, collect);
+    useEffect(() => monitor.subscribeToOffsetChange(updateCollected));
+    useEffect(() => monitor.subscribeToStateChange(updateCollected));
+    return collected;
+}