Files
xyflow/src/GlobalKeyHandler/index.js
T

29 lines
1010 B
JavaScript

import { useEffect, useContext, memo } from 'react';
import { useKeyPress } from '../hooks';
import { setNodesSelection } from '../state/actions';
import { GraphContext } from '../GraphContext';
import { isEdge, getConnectedEdges } from '../graph-utils';
export default memo((props) => {
const { state, dispatch } = useContext(GraphContext);
const removePressed = useKeyPress('Backspace');
useEffect(() => {
if (removePressed && state.selectedElements.length) {
let elementsToRemove = state.selectedElements;
// we also want to remove the edges if only one node is selected
if (state.selectedElements.length === 1 && !isEdge(state.selectedElements[0])) {
const connectedEdges = getConnectedEdges(state.selectedElements, state.edges);
elementsToRemove = [...state.selectedElements, ...connectedEdges];
}
props.onElementsRemove(elementsToRemove);
dispatch(setNodesSelection({ isActive: false }));
}
}, [removePressed])
return null;
});