import { AfterViewInit, ElementRef, OnChanges, OnDestroy, OnInit, QueryList, SimpleChanges } from '@angular/core';
import { PoListBoxBaseComponent } from './po-listbox-base.component';
import { PoItemListOptionGroup } from './po-item-list/interfaces/po-item-list-option-group.interface';
import { PoItemListOption } from './po-item-list/interfaces/po-item-list-option.interface';
import { PoSearchListComponent } from './po-search-list/po-search-list.component';
import { PoDropdownAction } from '../po-dropdown/po-dropdown-action.interface';
import { Observable } from 'rxjs';
export declare class PoListBoxComponent extends PoListBoxBaseComponent implements OnInit, AfterViewInit, OnChanges, OnDestroy {
    element: ElementRef<any>;
    currentItems: Array<PoDropdownAction>;
    currentGroup: PoDropdownAction | null;
    private readonly navigationStack;
    private readonly renderer;
    private readonly router;
    private readonly changeDetector;
    listbox: ElementRef;
    listboxItemList: ElementRef;
    listboxGroupHeader: ElementRef;
    searchElement: PoSearchListComponent;
    popupHeaderContainer: ElementRef;
    listboxItems: QueryList<ElementRef>;
    private scrollEvent$;
    private subscriptionScrollEvent;
    constructor();
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnChanges(changes?: SimpleChanges): void;
    ngOnDestroy(): void;
    openGroup(group: PoDropdownAction, event?: MouseEvent | KeyboardEvent): void;
    goBack(event: MouseEvent | KeyboardEvent): void;
    onKeydownGoBack(event: KeyboardEvent, currentGroup?: PoDropdownAction): void;
    protected onKeydownTemplate(event: KeyboardEvent): void;
    onSelectItem(itemListAction: PoItemListOption | PoItemListOptionGroup | any, event?: MouseEvent | KeyboardEvent): void | Promise<boolean>;
    onSelectAllCheckboxKeyDown(event: KeyboardEvent): void;
    onKeyDown(itemListAction: PoItemListOption | PoItemListOptionGroup | any, event?: KeyboardEvent): void;
    checkboxClicked({ option, selected }: {
        option: any;
        selected: any;
    }): void;
    optionClicked(option: any): void;
    onSelectCheckBoxItem(option: any): void;
    isSelectedItem(option: any): boolean;
    changeAllEmit(event: KeyboardEvent): void;
    onSelectTabs(tab: any): void;
    onActivatedTabs(tab: any): void;
    callChangeSearch(event: any): void;
    showMoreInfiniteScroll({ target }: {
        target: any;
    }): void;
    scrollListener(componentListner: HTMLElement): Observable<any>;
    setFocus(): void;
    protected checkInfiniteScroll(): void;
    protected getSizeLoading(): "xs" | "sm" | "md";
    protected getTextLoading(): "" | " ";
    private hasInfiniteScroll;
    checkTemplate(): number | true;
    private includeInfiniteScroll;
    protected returnBooleanValue(itemListAction: any, property: string): any;
    private setListBoxMaxHeight;
    private setListBoxWidth;
    private openUrl;
    onClickTabs(tab: any): void;
    formatItemList(item: any): string;
    handleFooterActionListbox(): void;
}