import * as i0 from '@angular/core';
import { AfterContentInit, AfterViewInit, EventEmitter, QueryList } from '@angular/core';
import { EuiAppShellService } from '@eui/core';
import * as i1 from '@eui/components/shared';
import { BaseStatesDirective } from '@eui/components/shared';

/**
 * A horizontal navigation bar component that displays a collection of selectable items.
 * Automatically adapts to a dropdown view when the available width is insufficient to display all items inline.
 * Supports primary and secondary visual variants through the BaseStatesDirective.
 * Manages the active state of child navbar items and emits selection events.
 *
 * @usageNotes
 * ### Basic Usage
 * ```html
 * <eui-navbar (itemClick)="onNavItemClick($event)">
 *   <eui-navbar-item id="home" label="Home" [isActive]="true"></eui-navbar-item>
 *   <eui-navbar-item id="about" label="About"></eui-navbar-item>
 *   <eui-navbar-item id="contact" label="Contact"></eui-navbar-item>
 * </eui-navbar>
 * ```
 *
 * ```typescript
 * onNavItemClick(itemId: string) {
 *   console.log('Selected:', itemId);
 * }
 * ```
 *
 * ### Accessibility
 * - Navbar items are keyboard navigable with Tab key
 * - Enter and Space keys activate items
 * - Active item is visually distinguished and announced to screen readers
 *
 * ### Notes
 * - Automatically switches to dropdown when width is constrained
 * - Only one item can be active at a time
 * - Supports primary and secondary visual variants
 */
declare class EuiNavbarComponent implements AfterContentInit, AfterViewInit {
    get cssClasses(): string;
    /**
     * Emitted when a navbar item is selected by user interaction.
     * Payload contains the id of the selected navbar item.
     * Triggered by click or keyboard activation (Enter/Space) on any child EuiNavbarItemComponent.
     */
    itemClick: EventEmitter<string>;
    items: QueryList<EuiNavbarItemComponent>;
    baseItemSelected: EuiNavbarItemComponent;
    isDropdownView: boolean;
    asService: EuiAppShellService;
    baseStatesDirective: BaseStatesDirective;
    private elementRef;
    ngAfterContentInit(): void;
    ngAfterViewInit(): void;
    itemSelected(id: string): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<EuiNavbarComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<EuiNavbarComponent, "eui-navbar", never, {}, { "itemClick": "itemClick"; }, ["items"], ["*"], true, [{ directive: typeof i1.BaseStatesDirective; inputs: { "euiPrimary": "euiPrimary"; "euiSecondary": "euiSecondary"; }; outputs: {}; }]>;
}

/**
 * A selectable navigation item that must be used as a child of EuiNavbarComponent.
 * Displays a text label and manages its own active state through visual styling.
 * Supports keyboard navigation with Enter and Space keys.
 * Automatically communicates selection events to the parent navbar component.
 *
 * @usageNotes
 * ### Basic Usage
 * ```html
 * <eui-navbar>
 *   <eui-navbar-item id="dashboard" label="Dashboard" [isActive]="true"></eui-navbar-item>
 *   <eui-navbar-item id="reports" label="Reports"></eui-navbar-item>
 * </eui-navbar>
 * ```
 *
 * ### Accessibility
 * - Focusable with `tabindex="0"`
 * - Activatable with Enter or Space keys
 * - Active state is visually indicated
 *
 * ### Notes
 * - Must be direct child of `eui-navbar`
 * - Requires unique `id` for selection tracking
 * - Label is required for display
 */
declare class EuiNavbarItemComponent {
    get cssClasses(): string;
    tabindex: number;
    /**
     * Unique identifier for the navbar item.
     * Used to track selection state and emitted in the parent navbar's itemClick event.
     * Required for proper item selection management.
     */
    id: string;
    /**
     * Text label displayed for the navbar item.
     * Rendered directly in the component template.
     * Required for meaningful user interaction.
     */
    label: string;
    /**
     * Determines whether this navbar item is currently selected.
     * When true, applies the 'eui-navbar-item--active' CSS class for visual distinction.
     * Defaults to false. Managed by the parent EuiNavbarComponent during selection.
     */
    isActive: boolean;
    navBarComponentParent: EuiNavbarComponent;
    constructor();
    protected onClick(): void;
    protected onKeydown(event: KeyboardEvent): void;
    private _click;
    static ɵfac: i0.ɵɵFactoryDeclaration<EuiNavbarItemComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<EuiNavbarItemComponent, "eui-navbar-item", never, { "id": { "alias": "id"; "required": false; }; "label": { "alias": "label"; "required": false; }; "isActive": { "alias": "isActive"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_isActive: unknown;
}

declare const EUI_NAVBAR: readonly [typeof EuiNavbarComponent, typeof EuiNavbarItemComponent];

export { EUI_NAVBAR, EuiNavbarComponent, EuiNavbarItemComponent };
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