import { TemplateResult, CSSResultArray } from 'lit';
import NileElement from '../../internal/nile-element';
export interface SuggestItem {
    key: string;
    label: string;
    /** Secondary text shown right-aligned (e.g. slash-command hint). */
    hint?: string;
}
/**
 * Keyboard-navigable suggestion popup shared by mentions and slash commands.
 * The host positions it, feeds `items`, and drives navigation through
 * next()/prev()/selectCurrent(); picking an item emits
 * `wysiwyg-suggest-select` with the item.
 */
export declare class NileWysiwygSuggestList extends NileElement {
    open: boolean;
    items: SuggestItem[];
    private activeIndex;
    static get styles(): CSSResultArray;
    protected willUpdate(): void;
    protected updated(changed: Map<string, unknown>): void;
    next(): void;
    prev(): void;
    resetActive(): void;
    selectCurrent(): boolean;
    render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        'nile-wysiwyg-suggest-list': NileWysiwygSuggestList;
    }
}