import { Observable } from 'rxjs';
import { DropDownEventMessage } from '../../models/drop-down-event-message.interface';
import { DropDownItem } from '../../models/drop-down-item.interface';
import { PaginatorPage } from '../../../../data-table/paginator/models/paginator-page.interface';
import * as i0 from "@angular/core";
/**
 * In order to pass event messages between components.
 * The strategy should be as follows: the children components emit events to main parent component (drop-down.component.ts)
 * and main parent component does the logic and updates the relevant component inputs.
 *
 * For example, when items are selected, the item component will emit an event of item selected and parent component
 * will change the item selected value to true.
 *
 * NOTE: this service is generally for internal-use.
 * It is intended to be used externally only for dropdowns which utilize the custom itemComponent option.
 */
export declare class DropDownEventMessagesService {
    private event$;
    listen$: Observable<DropDownEventMessage>;
    /**
     * emit event.
     * we should emit event from child component to parent component.
     * @param eventMessage
     */
    emit(eventMessage: DropDownEventMessage): void;
    /**
     * Emit event of item clicked
     */
    itemClicked(clickedItem: DropDownItem): void;
    /**
     * on reset clicked -> unselect all items
     */
    clearSelected(): void;
    /**
     * on select all clicked -> select all items
     */
    selectAll(): void;
    /**
     * on new search value
     */
    searchValueChanged(searchValue: string): void;
    /**
     * on new search value originating from a nested server menu.
     */
    nestedSearchValueChanged(searchValue: string, menuIndexNumber: number): void;
    /**
     * on page change.
     * when user clicks on a different page number from paginator.
     */
    pageChanged(page: PaginatorPage): void;
    /**
     * on page change originating from a nested server menu.
     */
    nestedPageChanged(page: PaginatorPage, menuIndexNumber: number): void;
    /**
     * get more items for infinite scroll
     */
    getMoreItems(): void;
    /**
     * update isResizing
     */
    updateIsResizing(isResizingValue: boolean): void;
    /**
     * escape clicked.
     * we used it in order to close dropdown
     */
    escapeClicked(): void;
    /**
     * set search on focus.
     */
    setSearchOnFocus(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DropDownEventMessagesService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DropDownEventMessagesService>;
}
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