import * as React from "react";
import { IImageProps } from "../Image";
export interface IImageLoadTrackerProps {
    mount: boolean;
    type: ImageLoadTrackerType;
    title: string;
    subtitle?: string;
    /**
     * For the "simple" and "preview" ImageLoadTrackerTypes, we show
     * some number of images. For detailed this uses a <Gallery> and for
     * preview it's just a single image.
     */
    images?: IImageProps[];
    /**
     * These 4 methods can be used to tap into the underlying
     * detail view
     */
    onDetailOpen?: () => void;
    onDetailClose?: () => void;
    onDetailOpened?: () => void;
    onDetailClosed?: () => void;
    /**
     * This method is very incomplete. Currently, `onResize` is fired
     * when the gallery in the `Detailed` version goes from 2 rows to 1
     */
    onResize?: () => void;
    onEnter?: () => void;
    onExit?: () => void;
    onExited?: () => void;
}
export declare enum ImageLoadTrackerType {
    /**
     * A "simple" tracker type display a clean grey box with a spinner
     * and a provided title */
    Simple = "Simple",
    Preview = "Preview",
    Detailed = "Detailed"
}
interface IImageLoadTrackerState {
    /**
     * We keep track of the mount in state
     * such that we can delay updating
     */
    mount: boolean;
}
export declare class ImageLoadTracker extends React.Component<IImageLoadTrackerProps, IImageLoadTrackerState> {
    state: IImageLoadTrackerState;
    private timer;
    componentDidMount(): void;
    shouldComponentUpdate(nextProps: IImageLoadTrackerProps, nextState: IImageLoadTrackerState): boolean;
    componentDidUpdate(prevProps: IImageLoadTrackerProps): void;
    render(): JSX.Element;
    private handleChangeMountProps;
}
export {};