import { CdkMenuTrigger } from '@angular/cdk/menu';
import { OnInit } from '@angular/core';
import { HorizontalPlacement, VerticalPlacement } from '../../common/placement';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/menu";
export declare class MenuTriggerDirective implements OnInit {
    private menuTrigger;
    private sapphireOverlay;
    /**
     * Horizontal alignment of the menu and the trigger.
     */
    align: HorizontalPlacement;
    /**
     * Vertical direction in which the menu opens, relative to the trigger.
     */
    direction: VerticalPlacement;
    constructor(menuTrigger: CdkMenuTrigger);
    ngOnInit(): void;
    close(): void;
    open(): void;
    toggle(): void;
    getMenu(): import("@angular/cdk/menu").Menu | undefined;
    isOpen(): boolean;
    private handleSpace;
    private handleEscape;
    /**
     * `CdkMenuTrigger` controls overlay creation, and doesn't allow customizing overlay config.
     * We need to patch it like this to make the menu modal, like other popovers. It's unsafe, as it
     * relies on private API, so we have to cover the expected result by tests.
     */
    private patchMenuTrigger;
    private getPlacementValue;
    static ɵfac: i0.ɵɵFactoryDeclaration<MenuTriggerDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<MenuTriggerDirective, "[spMenuTriggerFor]", ["spMenuTrigger"], { "align": "spMenuTriggerAlign"; "direction": "spMenuTriggerDirection"; }, {}, never, never, false, [{ directive: typeof i1.CdkMenuTrigger; inputs: { "cdkMenuTriggerFor": "spMenuTriggerFor"; }; outputs: { "cdkMenuOpened": "spMenuOpened"; "cdkMenuClosed": "spMenuClosed"; }; }]>;
}