ionic-framework/packages/react/src/contexts/IonContext.tsx

import React from 'react';

import { ReactComponentOrElement } from '../models';

export interface IonContextInterface {
  addOverlay: (
    id: string,
    overlay: ReactComponentOrElement,
    containerElement: HTMLDivElement
  ) => void;
  removeOverlay: (id: string) => void;
}

export const IonContext = React.createContext<IonContextInterface>({
  addOverlay: () => {
    return;
  },
  removeOverlay: () => {
    return;
  },
});