import { ESLMixinElement } from '../../esl-mixin-element/core';
/** Temporary wrapper object */
interface MatchItem {
    /** Wrapped HTMLElement */
    $el: HTMLElement;
    /** Order based on order parameter */
    order: number;
    /** Top position of the element on the page */
    top: number;
    /** Height of the element */
    height: number;
}
/**
 * ESLMatchHeight - mixin element to equalize heights of child elements within a container
 * @author Feoktyst Shovchko, Alexey Stsefanovich (ala'n)
 *
 * Use example:
 * ```html
 * <div esl-match-height="selector"
 *      esl-match-height-order="selectorTopPriority | selectorSecondPriority">
 *   ... div.selector * n
 * </div>
 * ```
 */
export declare class ESLMatchHeightMixin extends ESLMixinElement {
    static is: string;
    static observedAttributes: string[];
    /** Default selector for child elements to normalize */
    static readonly DEFAULT_SELECTOR = "[match-height]";
    /** Selector to find all the child elements that should be normalized by height */
    selector: string;
    /** A list of selectors in the order of priority (always ends with '*' matcher) */
    orders: string[];
    /** List of HTMLElements to normalize height */
    get $elements(): HTMLElement[];
    protected connectedCallback(): void;
    protected disconnectedCallback(): void;
    protected attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    /** Starts elements normalization */
    update(): void;
    protected onResize(): void;
    protected onFontsLoaded(): void;
    /** Compares two {@link MatchItem} objects */
    compare(a: MatchItem, b: MatchItem): number;
    /** Creates a wrapper object based on the passed element */
    protected toMatchItem($el: HTMLElement): MatchItem;
    /** Resets height values */
    clear($els?: HTMLElement[]): void;
    /** Update height values for passed elements */
    resize($els?: HTMLElement[]): void;
}
declare global {
    export interface ESLLibrary {
        MatchHeight: typeof ESLMatchHeightMixin;
    }
}
export {};