import { Plugin, ProseMirror, Schema } from '../../prosemirror';
import { ImageNodeType } from '../../schema';
export interface ImageUploadPluginOptions {
    defaultHandlersEnabled?: boolean;
    supportedImageTypes?: Array<string>;
    maxFileSizeInBytes: number;
}
export declare type ImageUploadHandler = (e: any, insertImageFn: any) => void;
export declare class ImageUploadState {
    private changeHandlers;
    private pm;
    private pasteAdapter;
    private dropAdapter;
    private config;
    active: boolean;
    enabled: boolean;
    hidden: boolean;
    uploadHandler?: ImageUploadHandler;
    src?: string;
    element?: HTMLElement;
    constructor(pm: PM, options: ImageUploadPluginOptions);
    handleImageUpload: (_?: any, e?: any) => boolean;
    subscribe: (cb: StateChangeHandler) => void;
    /**
     * Insert an image at the current selection.
     */
    addImage: (options: {
        src?: string | undefined;
    }) => void;
    /**
     * Remove the selected image.
     */
    removeImage(): void;
    /**
     * Update the selected image.
     */
    updateImage(options: {
        src?: string;
    }): void;
    private isImageSelected();
    private update();
    private getActiveImageElement();
    private canInsertImage();
}
declare var _default: Plugin<ImageUploadState>;
export default _default;
export interface S extends Schema {
    nodes: {
        image?: ImageNodeType;
    };
}
export interface PM extends ProseMirror {
    schema: S;
}
export declare type StateChangeHandler = (state: ImageUploadState) => any;