planning

node_modules/react-dnd/lib/hooks/useDrag/useRegisteredDragSource.js

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+import { registerSource } from '../../internals';
+import { useIsomorphicLayoutEffect } from '../useIsomorphicLayoutEffect';
+import { useDragSource } from './useDragSource';
+import { useDragDropManager } from '../useDragDropManager';
+import { useDragType } from './useDragType';
+export function useRegisteredDragSource(spec, monitor, connector) {
+    const manager = useDragDropManager();
+    const handler = useDragSource(spec, monitor, connector);
+    const itemType = useDragType(spec);
+    useIsomorphicLayoutEffect(function registerDragSource() {
+        if (itemType != null) {
+            const [handlerId, unregister] = registerSource(itemType, handler, manager);
+            monitor.receiveHandlerId(handlerId);
+            connector.receiveHandlerId(handlerId);
+            return unregister;
+        }
+    }, [manager, monitor, connector, handler, itemType]);
+}