import * as i0 from '@angular/core';
import { AfterContentInit, OnInit, ViewContainerRef, EventEmitter, TemplateRef, AfterViewInit, OnChanges, ElementRef, SimpleChanges, EmbeddedViewRef } from '@angular/core';
import { NzConfigService, NzConfigKey } from 'ng-zorro-antd/core/config';
import { IndexableObject, NzSafeAny } from 'ng-zorro-antd/core/types';
import * as rxjs from 'rxjs';
import { BehaviorSubject } from 'rxjs';
import { AnimationEvent } from '@angular/animations';
import { Direction } from '@angular/cdk/bidi';
import { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';
import * as i6 from 'ng-zorro-antd/menu';
import { MenuService } from 'ng-zorro-antd/menu';

type NzPlacementType = 'bottomLeft' | 'bottomCenter' | 'bottomRight' | 'topLeft' | 'topCenter' | 'topRight';
declare class NzDropdownMenuComponent implements AfterContentInit, OnInit {
    private cdr;
    private elementRef;
    private renderer;
    viewContainerRef: ViewContainerRef;
    private directionality;
    private destroyRef;
    mouseState$: BehaviorSubject<boolean>;
    nzMenuService: MenuService;
    isChildSubMenuOpen$: BehaviorSubject<boolean>;
    descendantMenuItemClick$: rxjs.Subject<any>;
    animationStateChange$: EventEmitter<AnimationEvent>;
    nzOverlayClassName: string;
    nzOverlayStyle: IndexableObject;
    templateRef: TemplateRef<NzSafeAny>;
    dir: Direction;
    onAnimationEvent(event: AnimationEvent): void;
    setMouseState(visible: boolean): void;
    setValue<T extends keyof NzDropdownMenuComponent>(key: T, value: this[T]): void;
    noAnimation: NzNoAnimationDirective | null;
    ngOnInit(): void;
    ngAfterContentInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzDropdownMenuComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzDropdownMenuComponent, "nz-dropdown-menu", ["nzDropdownMenu"], {}, {}, never, ["*"], true, never>;
}

declare class NzDropDownDirective implements AfterViewInit, OnChanges {
    readonly nzConfigService: NzConfigService;
    private renderer;
    private viewContainerRef;
    private platform;
    private destroyRef;
    readonly _nzModuleName: NzConfigKey;
    elementRef: ElementRef<any>;
    private overlay;
    private portal?;
    private overlayRef;
    private positionStrategy;
    private inputVisible$;
    private nzTrigger$;
    private overlayClose$;
    nzDropdownMenu: NzDropdownMenuComponent | null;
    nzTrigger: 'click' | 'hover';
    nzMatchWidthElement: ElementRef | null;
    nzBackdrop: boolean;
    nzClickHide: boolean;
    nzDisabled: boolean;
    nzVisible: boolean;
    nzOverlayClassName: string;
    nzOverlayStyle: IndexableObject;
    nzPlacement: NzPlacementType;
    readonly nzVisibleChange: EventEmitter<boolean>;
    constructor();
    setDropdownMenuValue<T extends keyof NzDropdownMenuComponent>(key: T, value: NzDropdownMenuComponent[T]): void;
    ngAfterViewInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzDropDownDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NzDropDownDirective, "[nz-dropdown]", ["nzDropdown"], { "nzDropdownMenu": { "alias": "nzDropdownMenu"; "required": false; }; "nzTrigger": { "alias": "nzTrigger"; "required": false; }; "nzMatchWidthElement": { "alias": "nzMatchWidthElement"; "required": false; }; "nzBackdrop": { "alias": "nzBackdrop"; "required": false; }; "nzClickHide": { "alias": "nzClickHide"; "required": false; }; "nzDisabled": { "alias": "nzDisabled"; "required": false; }; "nzVisible": { "alias": "nzVisible"; "required": false; }; "nzOverlayClassName": { "alias": "nzOverlayClassName"; "required": false; }; "nzOverlayStyle": { "alias": "nzOverlayStyle"; "required": false; }; "nzPlacement": { "alias": "nzPlacement"; "required": false; }; }, { "nzVisibleChange": "nzVisibleChange"; }, never, never, true, never>;
    static ngAcceptInputType_nzBackdrop: unknown;
    static ngAcceptInputType_nzClickHide: unknown;
    static ngAcceptInputType_nzDisabled: unknown;
    static ngAcceptInputType_nzVisible: unknown;
}

declare class NzDropDownADirective {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzDropDownADirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NzDropDownADirective, "a[nz-dropdown]", never, {}, {}, never, never, true, never>;
}

/**
 * @deprecated Will be removed in v21, because it is not used anymore.
 */
declare class NzDropdownButtonDirective {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzDropdownButtonDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NzDropdownButtonDirective, "[nz-button][nz-dropdown]", never, {}, {}, never, never, true, never>;
}

declare class NzContextMenuServiceModule {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzContextMenuServiceModule, never>;
    static ɵmod: i0.ɵɵNgModuleDeclaration<NzContextMenuServiceModule, never, never, never>;
    static ɵinj: i0.ɵɵInjectorDeclaration<NzContextMenuServiceModule>;
}

declare class NzDropDownModule {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzDropDownModule, never>;
    static ɵmod: i0.ɵɵNgModuleDeclaration<NzDropDownModule, never, [typeof NzDropDownDirective, typeof NzDropDownADirective, typeof NzDropdownMenuComponent, typeof NzDropdownButtonDirective, typeof NzContextMenuServiceModule], [typeof i6.NzMenuModule, typeof NzDropDownDirective, typeof NzDropDownADirective, typeof NzDropdownMenuComponent, typeof NzDropdownButtonDirective]>;
    static ɵinj: i0.ɵɵInjectorDeclaration<NzDropDownModule>;
}

declare class NzContextMenuService {
    private ngZone;
    private overlay;
    private overlayRef;
    private closeSubscription;
    create($event: MouseEvent | {
        x: number;
        y: number;
    }, nzDropdownMenuComponent: NzDropdownMenuComponent): EmbeddedViewRef<NzSafeAny>;
    close(clear?: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzContextMenuService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NzContextMenuService>;
}

export { NzContextMenuService, NzContextMenuServiceModule, NzDropDownADirective, NzDropDownDirective, NzDropDownModule, NzDropdownButtonDirective, NzDropdownMenuComponent };
export type { NzPlacementType };