import { EventEmitter } from '../../stencil-public-runtime';
export interface DropdownOption {
    label: string;
    value: string;
    disabled?: boolean;
    group?: string;
    icon?: string;
}
export declare class PnDropdown {
    el: HTMLElement;
    label: string;
    placeholder: string;
    options: DropdownOption[];
    value: string;
    disabled: boolean;
    required: boolean;
    error: boolean;
    errorMessage: string;
    typeahead: boolean;
    name: string;
    dropdownId: string;
    clearable: boolean;
    noResultsText: string;
    iconLeft: string;
    isOpen: boolean;
    selectedOption: DropdownOption | null;
    filterText: string;
    highlightedIndex: number;
    focused: boolean;
    pnChange: EventEmitter<{
        value: string;
        label: string;
        name?: string;
    }>;
    pnFocus: EventEmitter<void>;
    pnBlur: EventEmitter<void>;
    private generatedId;
    private inputRef;
    private listboxRef;
    private triggerRef;
    componentWillLoad(): void;
    onValueChange(): void;
    onOptionsChange(): void;
    onDocumentClick(event: Event): void;
    private syncSelection;
    private get uid();
    private getFiltered;
    private getGrouped;
    private open;
    private close;
    private toggle;
    private select;
    private clearValue;
    private handleInput;
    private handleInputFocus;
    private handleInputBlur;
    private handleTriggerFocus;
    private handleTriggerBlur;
    private handleKeyDown;
    private moveHighlight;
    private scrollToActive;
    private renderChevron;
    private renderOption;
    render(): any;
}