react-beautiful-dnd/src/state/is-movement-allowed.js

Beautiful, accessible drag and drop for lists with React.js

// @flow
import type { State } from '../types';
// Using function declaration as arrow function does not play well with the %checks syntax
export default function isMovementAllowed(state: State): boolean %checks {
  return state.phase === 'DRAGGING' || state.phase === 'COLLECTING';
}