import { EventEmitter, QueryList, ElementRef, AfterContentInit } from '@angular/core';
import * as i0 from "@angular/core";
/**
 * Wraps the content and handles keyboard control (tabbing and focus) of the contents.
 */
export declare class DropdownContent implements AfterContentInit {
    elementRef: ElementRef;
    focusLost: EventEmitter<boolean>;
    focusableItems: HTMLElement[];
    items: QueryList<ElementRef>;
    constructor(elementRef: ElementRef);
    keyHandler(e: KeyboardEvent): void;
    ngAfterContentInit(): void;
    focusFirstItem(): void;
    focusNext(currentElement: HTMLElement, e: KeyboardEvent): void;
    focusPrevious(currentElement: HTMLElement, e: KeyboardEvent): void;
    private getIndexOfElement;
    static ɵfac: i0.ɵɵFactoryDeclaration<DropdownContent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<DropdownContent, "gtx-dropdown-content", never, {}, {}, ["items"], ["*"]>;
}