import { CssLength } from '@breadstone/mosaik-themes';
import { SkeletonShape } from '../../../Types/SkeletonShape';
import { CustomElement } from '../../Abstracts/CustomElement';
import { ISkeletonElementProps } from './ISkeletonElementProps';
type Target = '_blank' | '_self' | '_parent' | '_top';
declare const SkeletonElement_base: (abstract new (...args: Array<any>) => import("../../../Behaviors/Themeable").IThemeableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Dimensionable").IDimensionableProps) & typeof CustomElement & import("../../../Behaviors/Themeable").IThemeableCtor;
/**
 * Skeleton - A placeholder element that mimics content structure during loading states.
 *
 * @description
 * The Skeleton component is a fundamental loading indicator that provides visual feedback while
 * content is being fetched or processed. It displays placeholder shapes that approximate the final
 * content layout, reducing perceived loading time and improving user experience by showing the
 * structure of upcoming content. The component supports multiple shape variants (rectangle, circle,
 * text) through the SkeletonShape enumeration, configurable dimensions via the Dimensionable behavior,
 * and an optional shimmer animation effect that creates a subtle sweeping highlight to indicate
 * loading activity. Skeleton screens are proven to reduce bounce rates and increase user engagement
 * during asynchronous operations.
 *
 * @name Skeleton
 * @element mosaik-skeleton
 * @category Primitives
 *
 * @csspart shimmer - The animated shimmer highlight overlay element
 *
 * @cssprop {String} --skeleton-background-color - The base background color of the skeleton placeholder
 * @cssprop {String} --skeleton-border-color - The border color of the skeleton placeholder
 * @cssprop {String} --skeleton-border-radius - The border radius for rounded skeleton shapes
 * @cssprop {String} --skeleton-border-style - The border style for the skeleton placeholder
 * @cssprop {String} --skeleton-border-width - The border width for the skeleton placeholder
 * @cssprop {String} --skeleton-foreground-color - The foreground color (typically unused but available)
 *
 * @example
 * Text line skeleton placeholder:
 * ```html
 * <mosaik-skeleton shape="text" width="200px" height="16px"></mosaik-skeleton>
 * ```
 *
 * @example
 * Avatar skeleton with shimmer animation:
 * ```html
 * <mosaik-skeleton shape="circle" width="48px" height="48px" shimmer></mosaik-skeleton>
 * ```
 *
 * @public
 */
export declare class SkeletonElement extends SkeletonElement_base implements ISkeletonElementProps {
    private _shape;
    private _shimmer;
    /**
     * @public
     */
    constructor();
    /**
     * Returns the `is` property.
     * The `is` property represents natural name of this element.
     *
     * @public
     * @static
     * @readonly
     */
    static get is(): string;
    target?: Target;
    /**
     * Gets or sets the `shape` property.
     *
     * @public
     * @attr
     */
    get shape(): SkeletonShape;
    set shape(value: SkeletonShape);
    /**
     * Gets or sets the `shimmer` property.
     *
     * @public
     * @attr
     */
    get shimmer(): boolean;
    set shimmer(value: boolean);
    /**
     * @protected
     */
    protected onWidthPropertyChanged(prev?: CssLength, next?: CssLength): void;
    /**
     * @protected
     */
    protected onHeightPropertyChanged(prev?: CssLength, next?: CssLength): void;
}
/**
 * @public
 */
export declare namespace SkeletonElement {
    type Props = ISkeletonElementProps;
}
/**
 * @public
 */
declare global {
    interface HTMLElementTagNameMap {
        'mosaik-skeleton': SkeletonElement;
    }
}
export {};
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