@xyflow/react/dist/umd/hooks/useOnSelectionChange.d.ts

React Flow - A highly customizable React library for building node-based editors and interactive flow charts.

import type { OnSelectionChangeFunc, Node, Edge } from '../types';
export type UseOnSelectionChangeOptions<NodeType extends Node = Node, EdgeType extends Edge = Edge> = {
    /** The handler to register. */
    onChange: OnSelectionChangeFunc<NodeType, EdgeType>;
};
/**
 * This hook lets you listen for changes to both node and edge selection. As the
 *name implies, the callback you provide will be called whenever the selection of
 *_either_ nodes or edges changes.
 *
 * @public
 * @example
 * ```jsx
 *import { useState } from 'react';
 *import { ReactFlow, useOnSelectionChange } from '@xyflow/react';
 *
 *function SelectionDisplay() {
 *  const [selectedNodes, setSelectedNodes] = useState([]);
 *  const [selectedEdges, setSelectedEdges] = useState([]);
 *
 *  // the passed handler has to be memoized, otherwise the hook will not work correctly
 *  const onChange = useCallback(({ nodes, edges }) => {
 *    setSelectedNodes(nodes.map((node) => node.id));
 *    setSelectedEdges(edges.map((edge) => edge.id));
 *  }, []);
 *
 *  useOnSelectionChange({
 *    onChange,
 *  });
 *
 *  return (
 *    <div>
 *      <p>Selected nodes: {selectedNodes.join(', ')}</p>
 *      <p>Selected edges: {selectedEdges.join(', ')}</p>
 *    </div>
 *  );
 *}
 *```
 *
 * @remarks You need to memoize the passed `onChange` handler, otherwise the hook will not work correctly.
 */
export declare function useOnSelectionChange<NodeType extends Node = Node, EdgeType extends Edge = Edge>({ onChange, }: UseOnSelectionChangeOptions<NodeType, EdgeType>): void;
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