import { ChangeDetectorRef, EventEmitter, InjectionToken, OnDestroy, OnInit } from '@angular/core';
import { Observable } from 'rxjs';
import { NgbPaginatorIntl } from './paginator-intl.service';
import * as i0 from "@angular/core";
/**
 * Change event object that is emitted when the user selects a
 * different page size or navigates to another page.
 */
export type PageEvent = {
    /** The current page index. */
    pageIndex: number;
    /** Index of the page that was selected previously. */
    previousPageIndex: number;
    /** The current page size. */
    pageSize: number;
    /** The current total number of items being paged. */
    length: number;
};
/** Object that can be used to configure the default options for the paginator module. */
export interface NgbPaginatorDefaultOptions {
    /** Number of items to display on a page. By default set to 50. */
    pageSize?: number;
    /** The set of provided page size options to display to the user. */
    pageSizeOptions?: number[];
    /** Whether to hide the page size selection UI from the user. */
    hidePageSize?: boolean;
    /** Whether to show the first/last buttons UI to the user. */
    showFirstLastButtons?: boolean;
}
/** Injection token that can be used to provide the default options for the paginator module. */
export declare const NGB_PAGINATOR_DEFAULT_OPTIONS: InjectionToken<NgbPaginatorDefaultOptions>;
export declare class NgbPaginator implements OnInit, OnDestroy {
    _intl: NgbPaginatorIntl;
    private _changeDetectorRef;
    /** ID for the DOM node containing the paginator's items per page label. */
    readonly _pageSizeLabelId: string;
    private _intlChanges;
    private _isInitialized;
    private _initializedStream;
    /** The zero-based page index of the displayed list of items. Defaulted to 0. */
    get pageIndex(): number;
    set pageIndex(value: number);
    private _pageIndex;
    /** The length of the total number of items that are being paginated. Defaulted to 0. */
    get length(): number;
    set length(value: number);
    private _length;
    /** Number of items to display on a page. By default set to 50. */
    get pageSize(): number;
    set pageSize(value: number);
    private _pageSize;
    /** The set of provided page size options to display to the user. */
    get pageSizeOptions(): number[];
    set pageSizeOptions(value: number[] | readonly number[]);
    private _pageSizeOptions;
    /** Whether to hide the page size selection UI from the user. */
    hidePageSize: boolean;
    /** Whether to show the first/last buttons UI to the user. */
    showFirstLastButtons: boolean;
    /** Whether the paginator is disabled. */
    disabled: boolean;
    /**
     * The paginator display size.
     *
     * Bootstrap currently supports small and large sizes.
     */
    size?: 'sm' | 'lg' | null;
    /** Event emitted when the paginator changes the page size or page index. */
    readonly page: EventEmitter<PageEvent>;
    /** Displayed set of page size options. Will be sorted and include current page size. */
    _displayedPageSizeOptions: number[];
    /** Emits when the paginator is initialized. */
    initialized: Observable<void>;
    constructor(_intl: NgbPaginatorIntl, _changeDetectorRef: ChangeDetectorRef, defaults?: NgbPaginatorDefaultOptions);
    ngOnInit(): void;
    ngOnDestroy(): void;
    /** Advances to the next page if it exists. */
    nextPage(): void;
    /** Move back to the previous page if it exists. */
    previousPage(): void;
    /** Move to the first page if not already there. */
    firstPage(): void;
    /** Move to the last page if not already there. */
    lastPage(): void;
    /** Whether there is a previous page. */
    hasPreviousPage(): boolean;
    /** Whether there is a next page. */
    hasNextPage(): boolean;
    /** Calculate the number of pages */
    getNumberOfPages(): number;
    /**
     * Changes the page size so that the first item displayed on the page will still be
     * displayed using the new page size.
     *
     * For example, if the page size is 10 and on the second page (items indexed 10-19) then
     * switching so that the page size is 5 will set the third page as the current page so
     * that the 10th item will still be displayed.
     */
    _changePageSize(pageSize: number): void;
    /** Checks whether the buttons for going forwards should be disabled. */
    _nextButtonsDisabled(): boolean;
    /** Checks whether the buttons for going backwards should be disabled. */
    _previousButtonsDisabled(): boolean;
    /**
     * Updates the list of page size options to display to the user. Includes making sure that
     * the page size is an option and that the list is sorted.
     */
    private _updateDisplayedPageSizeOptions;
    /** Emits an event notifying that a change of the paginator's properties has been triggered. */
    private _emitPageEvent;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgbPaginator, [null, null, { optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgbPaginator, "ngb-paginator", ["ngbPaginator"], { "pageIndex": { "alias": "pageIndex"; "required": false; }; "length": { "alias": "length"; "required": false; }; "pageSize": { "alias": "pageSize"; "required": false; }; "pageSizeOptions": { "alias": "pageSizeOptions"; "required": false; }; "hidePageSize": { "alias": "hidePageSize"; "required": false; }; "showFirstLastButtons": { "alias": "showFirstLastButtons"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; "size": { "alias": "size"; "required": false; }; }, { "page": "page"; }, never, never, true, never>;
    static ngAcceptInputType_pageIndex: unknown;
    static ngAcceptInputType_length: unknown;
    static ngAcceptInputType_pageSize: unknown;
    static ngAcceptInputType_hidePageSize: unknown;
    static ngAcceptInputType_showFirstLastButtons: unknown;
    static ngAcceptInputType_disabled: unknown;
}