import { IDOMUtil } from "./i-dom-util";
import { IDOMElementHandlerResult } from "../../dom/dom-handler/dom-element-handler/i-dom-element-handler-result";
import { LibHelperName } from "@fovea/common";
import { IContext } from "../context-util/i-context";
/**
 * A class that helps with DOM-related operations. This is most relevant within the DOM-generator and DOM-handlers.
 */
export declare class DOMUtil implements IDOMUtil {
    /**
     * The name for a node that references itself
     * @type {string}
     */
    readonly selfReferenceNodeName = "host";
    /**
     * Returns an empty IDOMElementHandlerResult
     * @returns {IDOMElementHandlerResult}
     */
    readonly emptyResult: IDOMElementHandlerResult;
    /**
     * Returns true if the provided selector is built in
     * @param {string} selector
     * @returns {boolean}
     */
    isBuiltInSelector(selector: string): boolean;
    /**
     * Returns true if whitespace should be preserved in its' original form
     * within the node with the given name
     * @param {string} nodeName
     * @returns {boolean}
     */
    isPreserveWhitespaceNodeName(nodeName: string): boolean;
    /**
     * Returns true if formatting should be preserved inside the given node
     * @param {string} nodeName
     * @returns {boolean}
     */
    isPreserveFormattingNodeName(nodeName: string): boolean;
    /**
     * Merges two object IDOMHandlerResults. One of them, the second argument, may be a partial.
     * @param {IDOMElementHandlerResult} a
     * @param {Partial<IDOMElementHandlerResult>} b
     * @returns {IDOMElementHandlerResult}
     */
    mergeInstructions(a: IDOMElementHandlerResult, b: Partial<IDOMElementHandlerResult>): IDOMElementHandlerResult;
    /**
     * Generates an instruction to use a helper function fom FoveaLib
     * @param {LibHelperName} helperName
     * @param {Set<LibHelperName>} requiredHelpers
     * @returns {string}
     */
    useHelper(helperName: LibHelperName, { requiredHelpers }: IContext): string;
}