import { OnDestroy, ElementRef, Injector, Signal, WritableSignal } from '@angular/core';
import { RecursivePartial } from '@jscrpt/common';
import { Subscription, Subject } from 'rxjs';
import { Ordering, DataLoader, DataLoaderOptions, GridPlugin, Paging, GridPluginInstances } from '../../interfaces';
import { DataLoaderState } from '../../misc/enums';
import * as i0 from "@angular/core";
/**
 * Abstract class that represents any data loader component
 */
export declare abstract class DataLoaderAbstractComponent<TOptions extends DataLoaderOptions = DataLoaderOptions, TOrdering = unknown, TResult = unknown> implements DataLoader<TResult>, GridPlugin<TOptions>, OnDestroy {
    /**
     * Angular injector used for injecting dependencies
     */
    protected injector: Injector;
    /**
     * Last page used for loading data
     */
    protected lastPage: number | undefined | null;
    /**
     * Last items per page used for loading data
     */
    protected lastItemsPerPage: number | undefined | null;
    /**
     * Last ordering used for loading data
     */
    protected lastOrdering: TOrdering | undefined | null;
    /**
     * Options for 'AsyncDataLoader'
     */
    protected ɵoptions: TOptions;
    /**
     * Paging used in grid
     */
    protected paging: Paging | undefined | null;
    /**
     * Current state of data loader
     */
    protected ɵstate: WritableSignal<DataLoaderState>;
    /**
     * Subscription for page change in paging
     */
    protected pageChangedSubscription: Subscription | undefined | null;
    /**
     * Subscription for items per page change in paging
     */
    protected itemsPerPageChangedSubscription: Subscription | undefined | null;
    /**
     * Subscription for ordering change in content renderer
     */
    protected orderingChangedSubscription: Subscription | undefined | null;
    /**
     * Ordering plugin storing current ordering
     */
    protected ordering: Ordering<TOrdering> | undefined | null;
    /**
     * Subject for debounce dataCallback
     */
    protected debounceSubject: Subject<boolean>;
    /**
     * Subscription for debounce dataCallback
     */
    protected debounceSubscription: Subscription | undefined | null;
    /**
     * @inheritdoc
     */
    pluginElement: ElementRef<HTMLElement>;
    /**
     * @inheritdoc
     */
    gridPlugins: GridPluginInstances | undefined | null;
    /**
     * @inheritdoc
     */
    get state(): Signal<DataLoaderState>;
    /**
     * @inheritdoc
     */
    abstract get result(): Signal<TResult>;
    /**
     * @inheritdoc
     */
    get options(): TOptions;
    set options(options: RecursivePartial<TOptions>);
    constructor(defaultOptions: TOptions, options?: TOptions);
    /**
     * Called when component is destroyed
     */
    ngOnDestroy(): void;
    /**
     * @inheritdoc
     */
    initialize(force: boolean): void;
    /**
     * @inheritdoc
     */
    initOptions(): void;
    /**
     * @inheritdoc
     */
    invalidateVisuals(): void;
    /**
     * @inheritdoc
     */
    loadData(force?: boolean): void;
    /**
     * Loads data from 'source'
     * @param force - Indication that data should be reloaded even if nothing changed
     */
    protected abstract loadGridData(force?: boolean): void;
    /**
     * Check for changes on input
     */
    protected checkChanges(): boolean;
    /**
     * Registers debounce subject
     */
    protected registerDebounce(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DataLoaderAbstractComponent<any, any, any>, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DataLoaderAbstractComponent<any, any, any>>;
}
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