import { IEventEmitter } from '@breadstone/mosaik-elements';
import { ISlottable } from '../../../Behaviors/Slottable';
import { CustomElement } from '../../Abstracts/CustomElement';
import { IContentChangedEvent, IContentChangedEventDetail } from './Events/ContentChangedEvent';
import { IContentElementProps } from './IContentElementProps';
declare const ContentElement_base: (abstract new (...args: Array<any>) => import("../../../Behaviors/Themeable").IThemeableProps) & (abstract new (...args: Array<any>) => import("../../../Behaviors/Slottable").ISlottableProps & ISlottable) & typeof CustomElement & import("../../../Behaviors/Themeable").IThemeableCtor;
/**
 * The `{@link ContentElement}` element.
 *
 * @slot - The default content slot.
 *
 * @fires contentChanged - Fired when the content changes.
 *
 * @public
 */
export declare class ContentElement extends ContentElement_base implements IContentElementProps, ISlottable {
    private readonly _contentChanged;
    private _hasContent;
    /**
     * @public
     */
    constructor();
    /**
     * Returns the `{@link is}` property.
     * The `{@link is}` property represents natural name of this element.
     *
     * @public
     * @static
     * @readonly
     */
    static get is(): string;
    /**
     * Gets or sets the `hasContent` property.
     *
     * @public
     * @readonly
     * @attr
     */
    get hasContent(): boolean;
    private set hasContent(value);
    /**
     * Called when the content changes.
     * Provides reference to `{@link IEventDetail}` as event detail.
     *
     * @public
     * @readonly
     * @eventProperty
     */
    get contentChanged(): IEventEmitter<IContentChangedEventDetail>;
    /**
     * @public
     * @override
     */
    onSlotChanges(): void;
    /**
     * Emits the {@link contentChanged} event.
     *
     * @protected
     */
    protected onContentChanged(args: IContentChangedEventDetail): void;
}
/**
 * @public
 */
export declare namespace ContentElement {
    type Props = IContentElementProps;
}
/**
 * @public
 */
declare global {
    interface HTMLElementTagNameMap {
        'mosaik-content': ContentElement;
    }
    interface HTMLElementEventMap {
        contentChanged: IContentChangedEvent;
    }
}
export {};
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