import type { TableLoadMoreDetail, TableLoadMoreMode, TableLoadMoreReason } from './table-types';
export interface TableLoadControllerState {
    lazyLoading: boolean;
    loadMoreMode: TableLoadMoreMode;
    hasMore: boolean;
    loadingMore: boolean;
    loadMoreError: string | undefined;
    loadIdentity: string | number;
    loadMoreThreshold: number;
    containedScroll: boolean;
    loadingMoreLabel: string;
    endOfResultsLabel: string;
    rowsLoadedLabel: string;
    loadedRowCount: number;
    viewport: HTMLElement | null;
    sentinel: HTMLElement | null;
}
export interface TableLoadControllerOptions {
    state: () => TableLoadControllerState;
    announce: (message: string) => void;
    request: (detail: TableLoadMoreDetail) => void;
}
/** Owns incremental-loading request guards, announcements, and observation. */
export declare class TableLoadController {
    private readonly options;
    readonly intersectionSupported: boolean;
    private connected;
    private intersectionObserver;
    private observedSentinel;
    private requestPending;
    private requestedRowCount;
    private previousLoadedRowCount;
    constructor(options: TableLoadControllerOptions);
    initialize(): void;
    connect(): void;
    disconnect(): void;
    refresh(): void;
    structureChanged(): void;
    dataChanged(): void;
    identityChanged(): void;
    configurationChanged(): void;
    loadingChanged(loading: boolean): void;
    errorChanged(error: string | undefined): void;
    hasMoreChanged(hasMore: boolean, hadMore: boolean): void;
    request(reason: TableLoadMoreReason): void;
    private resetRequest;
    private disconnectObserver;
}
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