import { ElementRef, OnDestroy, EventEmitter } from '@angular/core';
import { ConnectedPosition, Overlay, ScrollStrategy } from '@angular/cdk/overlay';
import { NavChildItem, NavItem } from './sidebar.models';
import * as i0 from "@angular/core";
export declare class NavItemComponent implements OnDestroy {
    private readonly overlay;
    item: NavItem;
    isActive: boolean;
    /** Whether the sidebar is in expanded (wide) mode */
    isExpanded: boolean;
    /** Whether this item's sub-menu is open */
    isOpen: boolean;
    /** Current route / selection id — used to highlight child in collapsed flyout */
    activeNavId: string;
    itemClick: EventEmitter<string>;
    navHostRef?: ElementRef<HTMLElement>;
    /** Collapsed parent: drives CDK connected overlay for submenu */
    showCollapsedFlyout: boolean;
    private closeFlyoutTimer;
    private static readonly FLYOUT_CLOSE_DELAY_MS;
    readonly flyoutScrollStrategy: ScrollStrategy;
    readonly collapsedFlyoutPositions: ConnectedPosition[];
    constructor(overlay: Overlay);
    ngOnDestroy(): void;
    get hasChildren(): boolean;
    get collapsedFlyoutOpen(): boolean;
    /**
     * Collapsed rail: show label (leaf) or disabled copy in MatTooltip so it renders in CDK overlay,
     * not as an absolute child inside the scrolling nav.
     */
    get collapsedRailTooltip(): string;
    get collapsedRailTooltipClass(): string;
    isChildRowActive(childId: string): boolean;
    onHostMouseEnter(): void;
    onHostMouseLeave(): void;
    onHostFocusIn(_e: FocusEvent): void;
    onHostFocusOut(e: FocusEvent): void;
    onFlyoutOverlayPointerEnter(): void;
    onFlyoutOverlayPointerLeave(): void;
    onFlyoutOverlayFocusOut(e: FocusEvent): void;
    closeCollapsedFlyout(): void;
    onClick(): void;
    onChildRowClick(e: Event, child: NavChildItem): void;
    private clearFlyoutCloseTimer;
    private scheduleCloseCollapsedFlyout;
    static ɵfac: i0.ɵɵFactoryDeclaration<NavItemComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NavItemComponent, "cqa-nav-item", never, { "item": "item"; "isActive": "isActive"; "isExpanded": "isExpanded"; "isOpen": "isOpen"; "activeNavId": "activeNavId"; }, { "itemClick": "itemClick"; }, never, never>;
}