import { ElementRef } from '@angular/core';
export declare class ButtonDropdownComponent {
    private _elementRef;
    isOpen: boolean;
    constructor(_elementRef: ElementRef);
    /**
     * hides dropdown on outside click
     * @param target
     */
    documentClickHandler: (target: any) => void;
    toggleShow(): void;
    hide(): void;
    /**
     * check position of menu and move if it is placed out of view window
     */
    checkPosition(): void;
}