import { Container } from "golden-layout";
import { ReactComponentHandler } from "./base";
/**
 * Golden-layout component handler for React components that are meant to
 * be mounted lazily. Such components are mounted only when they become
 * visible and unmounted when they become hidden.
 */
export declare class LazyReactComponentHandler extends ReactComponentHandler {
    private _isVisible;
    /**
     * Constructor.
     *
     * @param {lm.container.ItemContainer}  container  the container that
     *        will contain the React component
     */
    constructor(container: Container);
    /**
     * Event handler for the 'destroy' event; unmounts the component from the
     * DOM if it is still mounted. Also detaches from any relevant events of
     * the container that we were subscribed to.
     */
    protected onDestroy(): void;
    /**
     * Returns whether the component should be mounted, given its current state.
     */
    protected shouldBeMounted(): boolean;
    /**
     * Event handler for the 'show' event; mounts the component in the DOM
     * if it is already open.
     */
    private _onShow;
    /**
     * Event handler for the 'hide' event; unmounts the component from the DOM
     * if it is still mounted.
     */
    private _onHide;
}