import { RefObject } from 'react';
import { DefaultRenderElementProps, OnlyEditorPlugin, DefaultRenderLeafProps, DefaultElement } from "./type";
import { ReactEditor } from 'slate-react';
interface RenderElementPayload {
    readonly?: boolean;
    maxWidth?: number;
}
declare class Utils {
    private protocolAndDomainRE;
    private localhostDomainRE;
    private nonLocalhostDomainRE;
    renderElement(props: DefaultRenderElementProps, plugins: OnlyEditorPlugin[], payload: RenderElementPayload): JSX.Element;
    renderLeaf(props: DefaultRenderLeafProps, plugins: OnlyEditorPlugin[]): JSX.Element;
    onKeydown(event: KeyboardEvent, editor: ReactEditor, plugins: OnlyEditorPlugin[]): boolean;
    pipe(x: any, ...fns: any[]): any;
    getUUid(): string;
    classNames: (...args: any) => string;
    /**
     * 将 dataURI 转换成 blob
     */
    dataURItoBlob(dataURI: string): Blob;
    isUrl: (string: string) => boolean;
    /**
     * 生成 type 链表
     */
    generatorTypeLink(types: DefaultElement['type'][]): {
        [key: string]: {
            prev: DefaultElement['type'];
            next: DefaultElement['type'];
        };
    };
    encode(value: DefaultElement[]): string;
    decode(text: string): DefaultElement[];
    /**
     * 获取弹出框(popup)的位置
     * @param triggerRef 触发时的 dom ref(计算后的位置在此元素的下方)
     * @param contentAttr popup 的内容最大宽高
     * @param relativeRef 最近一级的 relative 定位元素,默认为 body
     * @param offset 定位偏移量
     * @param scrollElement popup 的可滚动容器
     */
    getPopupPosition(triggerRef: RefObject<HTMLElement>, contentAttr: {
        width: number;
        height: number;
    }, relativeRef?: RefObject<HTMLElement>, offset?: {
        left: number;
        top: number;
    }, scrollElement?: HTMLDivElement): {
        top: number;
        left: number;
    };
}
export declare const utils: Utils;
export {};