import { AfterContentInit, ChangeDetectorRef, ComponentRef, DestroyRef, ElementRef, Renderer2, ViewContainerRef } from "@angular/core";
import { Alignment, Position } from "@design-system-rte/core";
import { DropdownService } from "../../services/dropdown.service";
import { OverlayService } from "../../services/overlay.service";
import { DropdownMenuComponent } from "./dropdown-menu/dropdown-menu.component";
import { DropdownTriggerDirective } from "./dropdown-trigger/dropdown-trigger.directive";
import { DropdownItemConfig } from "./dropdown.types";
import * as i0 from "@angular/core";
export type DropdownOverlayLevel = "low" | "high";
export declare class DropdownDirective implements AfterContentInit {
    private static idCounter;
    readonly trigger: import("@angular/core").Signal<DropdownTriggerDirective | undefined>;
    readonly menu: import("@angular/core").Signal<DropdownMenuComponent | undefined>;
    readonly rteDropdownId: import("@angular/core").InputSignal<string | undefined>;
    readonly rteDropdownPosition: import("@angular/core").InputSignal<Position>;
    readonly rteDropdownAlignment: import("@angular/core").InputSignal<Alignment>;
    readonly rteDropdownIsOpen: import("@angular/core").InputSignal<boolean>;
    readonly rteDropdownOffset: import("@angular/core").InputSignal<number>;
    readonly rteDropdownAutofocus: import("@angular/core").InputSignal<boolean>;
    readonly rteDropdownAutoOpen: import("@angular/core").InputSignal<boolean>;
    readonly rteDropdownWidth: import("@angular/core").InputSignal<number | null>;
    readonly rteDropdownOverlayLevel: import("@angular/core").InputSignal<DropdownOverlayLevel | undefined>;
    readonly rteCloseOnItemClick: import("@angular/core").InputSignal<boolean>;
    readonly menuEvent: import("@angular/core").OutputEmitterRef<{
        event: Event;
        id: string;
        item?: DropdownItemConfig;
    }>;
    readonly dropdownId: string;
    readonly overlayService: OverlayService;
    readonly dropdownService: DropdownService;
    readonly viewContainerRef: ViewContainerRef;
    readonly elementRef: ElementRef<any>;
    readonly renderer: Renderer2;
    readonly hostElement: HTMLElement;
    readonly destroyRef: DestroyRef;
    readonly cdr: ChangeDetectorRef;
    readonly clickedOutside: import("@angular/core").OutputEmitterRef<void>;
    readonly closedDropdown: import("@angular/core").OutputEmitterRef<void>;
    readonly menuChangeEvent: import("@angular/core").OutputEmitterRef<{
        event: Event;
        id: string;
    }>;
    readonly isActive: import("@angular/core").WritableSignal<boolean>;
    readonly menuInputs: import("@angular/core").Signal<{
        items: DropdownItemConfig[];
        bodyTemplate: import("@angular/core").TemplateRef<any> | null | undefined;
        headerTemplate: import("@angular/core").TemplateRef<any> | null | undefined;
        footerTemplate: import("@angular/core").TemplateRef<any> | null | undefined;
        width: string | null;
    } | null>;
    dropdownMenuRef: ComponentRef<DropdownMenuComponent> | null;
    private itemEventSubscription;
    private viewportResizeFrameId;
    private closeDropdownTimeoutId;
    private readonly onViewportOrWindowResize;
    constructor();
    private registerViewportResizeRepositionHandling;
    private scheduleOverlayLayoutSync;
    onTrigger(): void;
    onTriggerKeyEvent(event: KeyboardEvent): void;
    onMenuEvent(event: {
        event: Event;
        id: string;
        item?: DropdownItemConfig;
    }): void;
    onMenuChangeEvent(event: {
        event: Event;
        id: string;
    }): void;
    private setupScrollBehavior;
    ngAfterContentInit(): void;
    showDropdownMenu(): void;
    private resolveDropdownUsesHighOverlayLevel;
    private assignInputs;
    private assignWidth;
    private positionDropdownMenu;
    private focusTriggerElementAfterMenuClosed;
    private unsubscribeItemEvent;
    private readonly handleClickOutside;
    private addClickOutsideListener;
    private removeClickOutsideListener;
    private closeDropdown;
    private clearCloseDropdownTimeout;
    static ɵfac: i0.ɵɵFactoryDeclaration<DropdownDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DropdownDirective, "[rteDropdown]", never, { "rteDropdownId": { "alias": "rteDropdownId"; "required": false; "isSignal": true; }; "rteDropdownPosition": { "alias": "rteDropdownPosition"; "required": false; "isSignal": true; }; "rteDropdownAlignment": { "alias": "rteDropdownAlignment"; "required": false; "isSignal": true; }; "rteDropdownIsOpen": { "alias": "rteDropdownIsOpen"; "required": false; "isSignal": true; }; "rteDropdownOffset": { "alias": "rteDropdownOffset"; "required": false; "isSignal": true; }; "rteDropdownAutofocus": { "alias": "rteDropdownAutofocus"; "required": false; "isSignal": true; }; "rteDropdownAutoOpen": { "alias": "rteDropdownAutoOpen"; "required": false; "isSignal": true; }; "rteDropdownWidth": { "alias": "rteDropdownWidth"; "required": false; "isSignal": true; }; "rteDropdownOverlayLevel": { "alias": "rteDropdownOverlayLevel"; "required": false; "isSignal": true; }; "rteCloseOnItemClick": { "alias": "rteCloseOnItemClick"; "required": false; "isSignal": true; }; }, { "menuEvent": "menuEvent"; "clickedOutside": "clickedOutside"; "closedDropdown": "closedDropdown"; "menuChangeEvent": "menuChangeEvent"; }, ["trigger", "menu"], never, true, never>;
}